My parents, I have noticed since being back, have a strong aversion to wearing seat belts, and an even stronger aversion to seat belt laws. So much so that they routinely get cited and have had to pay numerous fines. They feel quite strongly that seatbelt laws infringe heavily on their personal freedom and that the social (and other) cost arguments for their existence are completely bogus. Nevermind that actually wearing seatbelts is statistically much safer than not wearing them.
For my part, in the grand scheme of things, I can put up with wearing them. It isn’t such a big deal. And it is safer. I think there are much better battles to pick in showing civil disobedience. Then again, I don’t own a car or drive much.