If they only have orange lights (those community patrol guys), they can't pull you over. Those guys are usually called to scenes to do accident reports and allow the FHP or SO to move on to more important calls.

DOT is big with commercial stuff - they will pull you for a burnt out bulb and check your certifications to make sure they are up to date, as well as some other business-type checks they do. I'm all for them pulling over idiots with slammed cars, being that most people that low haven't done it properly.