Stealership plays late April Fools joke on me!!!

So I go to Nissan to have my oil changed (because it only cost $6.00 more then if I do it myself, and they wash my car) and they have this special on tires. Buy 3 get 1 for $1.00 The guy gives me an estimate of $620 for 2x 225/45/ZR18 and 2x 245/45ZR18 Summer tires (Mounted, and force balanced). I go in to buy them and the dude running the cashier tells me that the Z's and GTR's are excluded from the special...

Now they want nearly $1,000 bucks for the same thing... What kind of Happy Horse Shit is that? they should have honored their fuck up!!!! right??

That's not cool.

Sucks ya didn't get the original deal on paper. I'd show them they are number one, and walk out.