you can take your dealer issues to ford itself via a customer service regional/local manager (i can't remember the exact title . there's a person that oversees dealerships in your area, and this person has the authority to tell a dealership whether or not they can call themselves a "ford dealership" and display that big blue oval. I'd be looking in to who that is in your area as if they come through, it will put that whole dealership on their toes. I was gonna do this when i got stiffed on some TSB's the dealer gave me a paper that said they were done while my sport had no evidence of work being done. luckily it was warrantee work so i didn't and they ended up doing the work but if that work cost me 1600 as it is about to in your case. i'd definitely put some heat on them.