Overly polite in PA

Some of the roads I run on have very little shoulder. Some of them have no shoulder whatsoever. This means that I have to watch out for cars and they have to watch out for me. It's to be expected that the cars would move over a bit to give me some clearance. However I'm convinced that only here in Pennsylvania, where the drivers are all overly polite and you can end up waiting at a 4-way stop with folks waving each other through saying "No, you go first. I insist." like in some sort of strange Chip & Dale cartoon, would you find drivers who actually move all the way over into the other lane of traffic to go around me. I mean, I know I'm not as thin as I used to be but I don't think I need that wide of a berth. Or perhaps they're afraid I'm going to panic and dart out into traffic like a confused squirrel. I guess I should just be glad they're giving me space.