I was an Alignment and genral mechanic at the Pontiac/Oldsmobile/Auroura/Cadillac and GMC Dealer in Stillwater,Mn.
I got a work order for a black T/A with a heavy gas smell in it. Imagine my suprise whenI get in and its a Limited Edition Blackhawk. Number plate on the center console. The owner had overfilled the gas tank dumping the extra fuel into the canister on the evap system. Heck yeah I road tested it, I never turned in a work order without knowing the problem was fixed. No I did not drive it like I stole it, just a route that I used to check Alignments and other road issues.
That was a Good Day.