There was no collision, by "runs into" they mean "came upon" or "encountered" a pair of cars doing donuts

> “By the grace of the Gods, the donut fella screeched to a halt about a foot from the Waymo car,” Robinson posted. “He looked at me and got upset, but I shrugged, and pointed to the invisible driver. He sped off in a huff. In my panicking, I had pressed the ‘contact support button’ and the agent connected just after the interaction.”