I used to sell cars a few years ago, and I know that at the dealership I worked at, we never ran anyone's credit until they signed a form authorizing you to do so, and we definatley didn't run their credit until they actually agreed on a price for a car. We hadn't even negotiated a price firmly on the car.
I probably gave them my SS# when they were filling out paperwork, but I honestly don't remember, it was about a month ago. I know I never signed anything authorizing them so run a credit check and I do specifically remember telling the salesman that I wanted to use my bank only, but this was apparently after they had run my credit and didn't tell me.
I also had subsequent conversations with him over the phone discussing price and they never told me they had run my credit. My bank wouldn't approve the loan without a large down payment because I had so much neg equity and they wouldn't finance over the value of the car. The salesman said we could look at other finance options and another bank may be willing to do it, I told him I'd come in and we could talk about the possiblity of it but we still never agreed firmly on a price. I never went back in because I realized it wasn't a good deal to make, and just refi'd my car instead.
I'm going to write the owner of the bank a letter and let him know that what he did was unethical and illegal since I never authorized the credit check. Is suing a good option though? Will it net any results or just waste my time?