What are you gonna do?
People in city buses don't usually put on the seatbelt. If you're going to start doling out fines for that, you'll have a literal revolt. Though it's been mandated for years and years.
The driver should've just driven over the robot without stopping though. A robot is not a human being or even an animal that there's a moral imperative to save. Maybe it'll teach starship to program it to not cross a pedestrian crossing when there's a red light for pedestrians. Though I suspect there could've been damage to the bus's front bumper so perhaps that would've been a bigger danger to his job than a few injuries.