I’ve seen the video. This driver had Autopilot on and experienced “phantom braking”. If you drive a Tesla you’ll have experienced phantom braking at some point, a false positive condition when the Autopilot cameras thinks there’s a wall up ahead, for example if going under an overpass. It will literally brake. You step on the accelerator and cuss once or twice at Elon and you’re good to move on. This Bay Bridge driver could not make a decision and let the car brake to a stop. It’s not uncommon. Anecdotally I would say Teslas get rear-ended quite often.