You’re driving down South Lamar, or perhaps heading home through the construction-heavy corridors of I-35, when the unthinkable happens. A Waymo robotaxi—a vehicle guided by lasers, sensors, and software—makes a critical error. In a split second, your world is turned upside down.
In the immediate aftermath of a collision, your mind is rightfully on your health, your family, and the damage to your car. But while you are focused on recovery, a silent clock is ticking. At Joe Lopez Law, we call this the 72-Hour Evidence Window.
In a traditional car accident, evidence consists of skid marks on the asphalt and the testimony of human witnesses. But in an accident involving an autonomous vehicle (AV), the most critical witness isn’t human—it’s a digital “Black Box” owned by a multi-billion dollar tech giant. If you don’t move quickly to preserve that data, your chance at a fair recovery could vanish as quickly as the collision occurred.

The Digital Witness: What Waymo Knows That You Don’t
Every Waymo vehicle operating in Austin is equipped with an array of sophisticated sensors: Lidar, high-resolution cameras, and radar that scan the environment 360 degrees. This system, known as the “Waymo Driver,” records an incredible amount of data every millisecond.
When a crash occurs, this digital witness captures:
- The “Pre-Crash” Sequence: Exactly what the software saw (or failed to see) in the seconds leading up to impact.
- Sensor Calibration: Whether the Lidar was struggling with Austin’s humidity or the glare of a Texas sunset.
- Decision Logs: Why the computer chose to swerve, brake, or maintain speed.
- Hardware Status: Whether there was a mechanical failure in the braking or steering systems.
This data is the “smoking gun” in an Austin Waymo accident attorney investigation. Without it, the case becomes your word against a computer’s algorithm.
Why the 72-Hour Window Is Critical
You might assume that because Waymo is a tech company, they keep every byte of data forever. They don’t.
In my 20-plus years as a trial lawyer, I’ve learned that corporations—especially those in the business of “innovation”—are not in the business of handing over evidence that proves they were wrong. Data storage is expensive, and logs are frequently overwritten or purged as part of “routine maintenance.”
Furthermore, Alphabet (Waymo’s parent company) has a legal team that begins work the moment a crash is reported. While you are at the hospital, they are already analyzing the data to build a defense. If that data shows the “Waymo Driver” miscalculated a turn onto West 6th Street, that data is a liability for them.
If a formal legal “Spoliation Letter” is not sent immediately, that data could be “lost” to a routine system reset within days.
Joe’s Perspective: Why I Fight for the Data
“In my 20-plus years as a trial lawyer, I’ve learned that the biggest hurdle for an injured family isn’t just the law—it’s the information gap. I’ve stood before Texas juries many times, and one thing is always true: they want to see the ‘black box’ data. Whether it was my first case against Exxon Mobil back in 2004 or the complex catastrophic injury cases I handle today, corporate defendants rarely hand over evidence voluntarily. My mission at Joe Lopez Law is to bridge that gap. We don’t just ask for the data; we demand it legally and immediately, ensuring the ‘Waymo Driver’ algorithm is held to the same standard of safety as any other driver on an Austin street.”
The Legal Maneuver: The Spoliation Letter
To stop Waymo from deleting or overwriting the digital evidence of your crash, your lawyer must issue a Notice of Spoliation.
This is a formal legal demand that instructs Waymo and its affiliates to preserve all data related to a specific vehicle and timeframe. In Texas, if a party is put on notice to preserve evidence and they destroy it anyway, a judge can issue a “spoliation instruction.” This tells the jury they may assume the destroyed evidence would have been harmful to the company that deleted it.
At Joe Lopez Law, we don’t wait for the insurance company to call us. We aim to get these notices out immediately to ensure that:
- Raw Sensor Logs are preserved.
- Internal Diagnostic Reports from the time of the crash are kept.
- Video Footage from the vehicle’s onboard cameras is not looped over.
Texas Law and the “Operator” Problem
Under Texas Transportation Code § 545.453, the Automated Driving System (the software) is legally considered the “operator” of the vehicle. This is a complex, relatively new area of law.
Because there is no human driver to exchange insurance cards with in the traditional sense, the evidence stored in the vehicle’s software becomes your primary means of proving liability. If the software is the driver, then the software’s “memory” of the accident is the only testimony that matters. If you lose that memory, you lose your case.
Steps to Take in the First 24 Hours
If you are involved in a collision with an autonomous vehicle in Austin, follow these steps to protect your future:
- Call the Austin Police Department: Ensure a formal crash report is filed. Technology companies often try to “handle things internally,” but you need an official third-party record.
- Take Your Own Photos: Do not rely on Waymo’s cameras. Capture the positions of the vehicles, the road conditions, and any nearby construction barriers.
- Identify the “Vehicle ID”: Every Waymo has a unique number or name (often found on the bumper or rear quarter panel). Document this.
- Seek Medical Attention: Autonomous crashes can involve “low-speed” impacts that still cause significant whiplash or traumatic brain injuries (TBI) due to the weight of the vehicles (which are heavily laden with batteries and sensors).
- Contact an Attorney Immediately: You need someone to trigger the preservation of evidence before the 72-hour window closes.
Your Fight Is Our Fight
At Joe Lopez Law, we are not intimidated by Silicon Valley tech giants or their massive legal teams. We bring the “grit” required to take on Alphabet and the “compassion” to ensure you feel supported through every step of your recovery.
We’ve seen how insurance companies try to slow-walk victims until evidence disappears. We won’t let that happen to you. We understand the streets of Austin—from the traffic on MoPac to the pedestrians in the Downtown District—and we know how these robotaxis are failing our community.
If you or a loved one has been injured by a Waymo vehicle, do not wait for them to reach out to you. Their goal is to protect their technology; our goal is to protect your family.
Contact Joe Lopez Law today for a free, no-obligation consultation. We work on a contingency basis, meaning you don’t pay a dime unless we win your case. Let us handle the data and the tech giants so you can focus on getting your life back.
Joe Lopez Law: Austin Born. Texas Proud. Your Fight Is Our Fight.




