"And if you call it in, then the person on the radio goes "have you tried turning the bus off and turning it back on again"? (The ratio of truth to exaggeration is actually quite high here.)"
Let me tell you a little story about that...
Few years ago I was working in DC and was taking a series of buses, including a local commuter bus.
One day commuter bus starts having issues, can't remember what it was, it might have been something with the fare collection system.
Driver pull over to a stop, asks us all to get out, says he needs to "reset the bus."
We get out, he walks back to a panel that he open and pulls what looks like a HUGE circuit breaker. Bus goes completely quiet. He waits a minute, then flips this breaker again, get on, spends a minute or three running some diagnostics (I guess?) and then tells everyone to get back on the bus, and off we go.
He literally turned the bus off and back on again.