what to do, what you guys think of buying car and hidden fees

Hello guys,


I was wondering , I purchased a 14' X5 50i this past friday.. I spent couple of hours at the offices and it was late I was tired, when signing the contract I never paid attention to the sale price of the vehicle they added $800 buck got home and noticed that.. I think nothing can be done other than just tell the GM if this is the way they do business but other thant that I already signed the contract..

what you guys think

thanks