Kevin Drum at Calpundit says:
But why do I get the feeling that most people who complain about traffic cameras are actually just people who routinely push their luck at intersections and are afraid of getting caught? Is it because their principled arguments always strike me as completely lame?
Yeah, that’s it.
I’d note that, in my experience, complaints about enforcement of road safety laws of all kinds come mainly from the political right, and, as Kevin notes, mostly from people who routinely break the law themselves.
By contrast, suggestions for more lenient treatment of burglars, drug users etc come mostly from liberals, most of whom are not prone to burglary or even (relative to the general population) illegal drug use. This, along with the Bill Bennett affair, leads me to the following gigantic overgeneralisation. Conservatives make excuses for their own wrongdoing, liberals for the wrongdoing of others.