A mechanic tried to scam me. First thing I did was call my states Bureau of automotive repair and gave him a rundown of what I thought he was trying to do to me. The bureau rep didn't go over any details of how I thought he was trying to fuck me over, he simply asked if I got an invoice stating how much examining my vehicle would cost, and if I got the estimate for the work they were saying needed to be done in writing. I hadn't any of that. I left my vehicle there without getting a copy of the invoice that I signed when I was first there. The bureau rep told me that before I do anything, I need to get a copy of an invoice from them. It must have how much an examination of my car will cost in writing, and it must have a detailed account of their estimate on it. First thing I did when I got there was ask for the invoice. They handed it to me and it had none of what he said was supposed to be on it. I ripped out a copy, and that's when the shit hit the fan. They wanted the copy of the invoice that I ripped out. They *knew* what they were supposed to do, so that basically confirmed to me that they were trying to fuck me out of some cash. They were telling me I couldn't get my truck back until I paid them $85 for the estimate, *and* they wanted the copy of that invoice back! I was about to defend myself in a physical confrontation that I was sure was going to happen between me and the two I was arguing with, but then a stout hothead came into the office from the shop making it a three on one. He demanded the invoice back as he came after me. My middle aged ass outran the young buck. I called the bureau rep to let him know what just went down, and to my surprise, he told me he was 1 hour away, and he was on his way. Same day service! To shorten up the story, they ended up getting cited by the Bureau Of Automotive Repair for various violations. They probably got fined. I ended up diagnosing and fixing my vehicle myself. What they said was going to cost over $400 in parts + labor ended up simply being a part that needed to be cleaned out. A common emissions control related problem with cars that any pro could complete in one hours time, and doesn't require any parts.