This isn't about airplanes, but it's about following rules, ceding the right of way to emergency traffic, and not being a complete idiot. There must be some connection.
I was driving in the United States a while ago, on a road with several lanes of traffic. I heard emergency sirens and could see the flashing lights well behind me, so I braked, signalled right and tried to pull over. The stream of traffic to my right continued unabated, oblivious to the fact that they were preventing me from getting out of the way of an emergency vehicle. Ambulances and firetrucks were threading their way through traffic like idiots in Camaros. No one else appeared to be making any attempt to pull off to the side and stop. I was utterly bewildered. I honked at the unyielding drivers, but short of ramming someone, I wasn't getting out of my lane. I incredulously asked my passengers, resident in the US, "don't you have to give way to emergency vehicles here?"
"Yeah," they said, "theoretically."
Am I that naive? Since then, back in Canada, I've been paying attention. And when the sirens wail, everyone pulls over and stops. No one enters an intersection, even if the light is green, so that the cars on the red light side that are blocking the firetrucks can pull forward to let them through. After the emergency vehicles pass, you're on your own trying to get back into the lane you wanted, but no one stops you getting out of the way of an ambulance or firetruck.
Is the place I live an aberration? Was I in a particularly obnoxious US city? Do you stop for sirens? You should. It's the law, and you don't know for whom the siren wails. It could be someone you know who has a serious emergency and can't afford a single second delay for the paramedics to arrive.
This has been a public service rant, and an excuse for me to type my favourite word, firetruck.