SO since it wasn't ADDED but rather INCLUDED at the price you wanted, how are you being jacked? Wouldn't it be in bad faith to argue something because they gave exactly what you agreed on but wrote it up differently in the bill of sale?
It's bad faith to alter a sales contract one minute prior to it's signing. No dealer just gives away an extended third party tire warranty. The buyer is paying for it regardless of what he thought was a 'fair" deal or the "verbal" agreed to out the door price.
There is no such thing as a "fair" deal because what defines a "fair" deal? A "fair" deal is one dollar more than the amount at which time the dealer kicks you out of the store. It's pretty easy to get there in advance. Go to Car Cost Canada or APA and find the dealer invoice, add the prevailing dealer markup and bingo, Bob's your uncle. ABSOLUTELY no shell games, no adding of "value added products", no BS about "were giving you this big discount, but we need to bring some of it back as a "fee", but rest assured it's just for accounting purposes. You hear that and you're getting slammed.
As for "bad faith"; pretend buyers, aka test pilots, lead the charge here. Ppl who have no intention, have not the means to buy X vehicle, but plague dealerships for test drives.