California has a kind of don't ask don't tell thing with blue dots. You can get the occasional hard nose cop that will pull you over for looking at him and that type will write you up for everything they can find. Mostly they won't bother you if you are driving sanely. I have had one on my Harley for about 13 years and have never had it mentioned when stopped for not driving sanely, but also have unbaffled exhaust (read LOUD) and when ticketed for speeding never mentioned the loud pipes or blue dots - go figure.
