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In a scene straight out of a sci-fi movie, a Phoenix police officer recently found himself in an unusual traffic stop – pulling over a driverless Waymo robotaxi that had gone rogue. The incident, which occurred last month, has sparked discussions about the challenges of integrating autonomous vehicles into our existing traffic systems.

The Waymo vehicle, a Jaguar I-Pace, was spotted driving into an oncoming lane of traffic near a construction zone. When the officer activated his lights and siren, the robotaxi reportedly “freaked out,” running a red light before eventually pulling over in a nearby parking lot.
Bodycam footage captured the surreal moment when the officer approached the vehicle, finding no one behind the wheel. In a twist of modern technology, the car’s window rolled down automatically, allowing the officer to communicate with a Waymo support operative through the vehicle’s onboard system.
The operative explained that they would investigate the incident using their computer systems. Meanwhile, the officer was left in an unprecedented situation – unable to issue a citation to a computer.
This incident raises important questions about accountability and safety in the age of autonomous vehicles. Waymo, like other self-driving car companies, has equipped its vehicles with technology to detect emergency vehicles and respond appropriately. The company’s training guide for first responders outlines procedures for interacting with their autonomous vehicles, including using an intercom system to communicate with remote operators.
Despite these safeguards, the Phoenix incident highlights the potential for unexpected behavior in complex traffic situations. Waymo later stated that the vehicle had “encountered inconsistent construction signage,” leading to its brief foray into oncoming traffic.
While autonomous vehicles are often touted as the future of transportation, offering improved mobility and potentially reducing accidents, incidents like this underscore the ongoing safety concerns. The National Highway Traffic Safety Administration recently opened an investigation into Waymo following 31 reported incidents, 14 of which occurred in Arizona.
As cities like Phoenix continue to serve as testing grounds for autonomous vehicle technology, law enforcement and policymakers face new challenges in adapting traffic laws and procedures to this emerging technology. The question remains: in a world of driverless cars, who gets the ticket when things go wrong?