Great post - the "unintended consequences of good-intentioned laws". And this was an earlier point of mine. A lot of these laws or enforcement schemes are strictly for revenue generation and have nothing to do with improving public safety.
Speaking of mover-over laws for emergency vehicles, in the state of Illinois you're required to STOP for any emergency vehicle, including if they're in the opposite direction lanes. When I first moved there I had no idea why people were stopping, only to realize it was required by law. I never did. It was terrifying to suddenly have to "STOP" my car pretty hard from 45 mph, and then depend on the person behind me to actually be paying enough attention to realize that they needed to stop also, and to have the room to do so assuming they weren't riding right up my ***. Terrible law. And now an emergency vehicle travelling at potentially higher speed has to dodge cars suddenly stopping? Slow considerably and move over seems like a much better solution.
I never felt comfortable coming to a full and complete dead stop, and never did. Go ahead and ticket me. I had a car rear-ended and totaled on me when someone failed to notice a sudden stop in traffic. Good thing nobody was in the backseat, because they'd have been showered in glass and probably would have had broken legs.