I think just on principle I would have just left and went to another dealer.

1,200.00 isn't worth getting into a legal hassle over, but you did have a signed deal. I'm assuming that means it went through finance so it was an actual deal and not just the 4 square the used car guys use to take the deal to the used car sales manager. But come to think of it even with just that I think I would have left.

If they are going to do this to you on the sale, just think what they are going to do to you when its in service and you have absolutly no way of knowing if what they are telling you is true. Short of spending money to get a second opinion of course.

Not a dealer I would want to do business with...