A man was arrested earlier this week for driving recklessly in the Bay Area, but this was not an ordinary speeding ticket or DUI. The man was reportedly cruising in the backseat of a Tesla, on more than one occasion, with nobody else in the driver’s seat.

Over the past few weeks, Tesla has said this was impossible. Elon Musk denied that Autopilot was engaged during a deadly accident last month near Houston. During the company’s quarterly earnings call at the end of April, he said that journalists should be ashamed of their coverage of the crash. Local authorities initially told reporters that nobody was in the driver’s seat when first responders arrived, which many news outlets, including the WSJ, covered. On April 19, in response to someone’s skepticism about the coverage, Musk tweeted, “Your research as a private individual is better than professionals @WSJ!”

It wouldn’t be the first time Tesla owners outwitted their cars, though.