I'm a school bus driver and a few years ago I had a cop pass me while my red flashers were on and the stop sign was out and kids were about to get off the bus and cross the street. He was driving with one hand and looking at his phone in the other hand. He could have easily run a kid over. And then they probably would have found some way to blame me for it.
We have cameras now that automatically detect this and send out tickets, but we didn't at the time. It wouldn't have mattered anyway since the cops have to review the footage before any ticket goes out.