Okay, I'm confused. Is this car's autopilot not just "follow the vehicle in front of me, possibly steering a bit to stay in the lane"?

Most commenters here are commenting like you give it the destination and it drives you, but, as far as I know, the car does no such thing. Title should be changed "Tesla saved man's life by keeping him from crashing when he couldn't drive well", but that's not as inviting.