Why do you think those letters in the mail can be ignored?
I forget the exact reason, I researched it at the time and don’t remember well now, but the other comments are probably right. Anyway I know they can be ignored because I ignored them and nothing ever happened. Was more than a decade ago so I think I’m good. They were clearly sending them out to a large portion of everyone going through the intersection for no good reason, it was basically just a grift, so it would have been ridiculous to actually enforce all of them with police and courts.