I get a couple a month. I have got to the point I tell them to use the little print out that AZ gives them to wipe with. That don't work well because it's glossy paper . I have bought a "code reader" like the ones AZ uses. I will do the free code check to determine the starting point. After that it becomes a paying ticket or they can go down the road.
The problem as I see it is there are no "standards" in this industry. Any shmo can go to the hardware store, buy a set of wrenches, and call themselves a mechanic. In the state of Florida there a very strict licensing requirements to be a hair dresser, nail tech, carpenter, electrician, etc. My girlfriend, who is a waitress, even has to take a food safety course. No requirements to be a mechanic and the only requirement to open a shop is to register and pay your fees to the state and county. Better have a handicapped spot and wheelchair accessible bathroom but can you repair the vehicle? No one cares! I have complained to the state, county and city about the un-registered shops in my area. Their response is 1) We are understaffed, 2) No one else has complained 3) I am a disgruntled business owner who can't stand the competition! Until we get the recognition we deserve as PROFESSIONALS I am afraid this will remain the standard. Just my $2.98 worth ( 2 cents with inflation and Obama care).