I haven't been back to the dealer since I bought the car for this very reason. Especially bad since they drilled the top mounting holes for the license plate too big and the screws they put in fell out. I had to drill the bottom two holes. Figured if they couldn't drill the hole the right size what else could they mess up given the chance.
Base 2013 Mustang GT convertible, MT, race red w/301A package, JLT air/oil separator, JHR shifter bracket, K&N air filter