Last week, a police officer in Fullerton, California, just north of Anaheim, parked his patrol vehicle to block Oglethorpe Avenue. He was posted for traffic control duty after a fatal collision involving a motorcyclist and a suspected DUI driver. Hours into the crash investigation, the officer was standing outside his patrol car when he saw a Tesla driving toward him without slowing down.

The officer leaped out of the way as the Tesla plowed into the patrol vehicle. The cop car spun around and suffered damage to its front end. Images of the blue Tesla show its airbags deployed and severe front-end damage. The police officer was uninjured.

KTLA reported that a Fullerton spokesperson said the Tesla driver admitted they were using Full Self-Driving (FSD) mode. They also admitted to being on their cell phone during the wreck.

The incident comes after the NHTSA reopened an investigation of FSD mode’s ability to ensure the driver pays close enough attention to avoid collisions. Last year, Tesla released an over-the-air update to remedy the related recall. However, the update must be manually installed by the driver and can be reversed. The NHTSA has ongoing concerns over the number of preventable accidents involving FSD.

Tesla drivers can elect the latest available version of FSD, v12, but they must pay for it. Earlier this year, the company dropped the price to $99 per month or a one-time $8,000 payment, and many say it’s impressive. However, most free trials go unpurchased. What’s more, Tesla and Elon Musk started calling the technology “Supervised Full Self-Driving” to underscore the importance of driver attentiveness.

We don’t know which version of FSD the driver was using during the crash.