I have a car with an exhaust leak. I knew this before even going to Pep Boys, and asked them if they did exhaust work, since some shops don't really like tackling this kind of job.
I was told yes, bring it in and leave the car. They looked at the car, but didn't call.
I call in and am told there is no leak, nothing wrong. There is a clearly visible fracture in the front pipe, and a dangerous condition with the car.
So either they missed an obvious diagnosis when I told them where to look, or this shop didn't want to do the work and they lied. Lesson learned here--if I need anything more complicated than tire rotation, the car goes somewhere els.