"at least some of the U.S. still values their freedom"
Freedom to... break the law by speeding? Or did you mean privacy... on a publicly owned roadway? Being in your privately owned car does not change the fact that you are on public property and _everybody_ has the freedom to take your picture. You are also not invisible, so please get your finger out of your nose.
I don't understand the difference between a store camera catching a shoplifter who is then punished by the government or a roadside camera catching a speeder who then is punished the same way. Would you have all the cameras in the banks removed? Of course not. When I ride the bus or light rail I know there are cameras on board and that's fine by me because I've seen criminals brought to justice as a result.
Being an observant passenger/pedestrian also shows me that owning a car turns a lot of people in to assholes with a raging sense of entitlement. Being in a car with those people is even worse. I've discovered that most road rage is self-inflicted anger that the rest of the world isn't driving the way they want them to. Cars make people selfish and stressed out. Take down all the cameras and drivers will find something else to lash out at.