Tempe police say the self-driving Uber was in autonomous mode at the time of the collision and there was a vehicle operator behind the wheel.
So, maybe the human being had a heart and pulled over to inspect the speed bump....
Oh, I'm certain that the car made a gps location entry, noting a bumpy spot in the road to later be reported to - somebody. Give the technology some time and I'm sure that these incidents will be dealt with by an autonomous rig that combines the functions of street sweeper, chipper-shredder and chemical toilet suction truck.