same could be said about pedestrians (I say that as both, a driver and a pedestrian).
One as, I was trying to cross a street a a swarm of said pedestrians (for which the light was RED) prevented me and a bunch of other people (cars included) from doing just that, because they wen't paying any attention (and I'm fairly certain that it is not an exception at that particular intersection).
Another time, a drone forced me and a whoever was behind, to come to a COMPLETE STOP in an intersection when the light was GREEN because whatever he was doing on his phone was more important that his or others's people life.