Goodyear review: Deceptive employee

I've been going to the Goodyear Auto Service in Hempstead, NY for at least 5 years, today I had an experience that will stop me from ever using any Goodyear store again. On my lunch break today the tire pressure went down to 23 and kept going down as I was driving. Took it to Goodyear to get the tire checked out, and was told my the person at the front desk that there was a nail in the tire and the tire had to be replaced. Since the tire no longer had hazard protection it would cost me $351 to replace my tire for my 2014 Grand Cherokee, I asked why so much he said I had a 20"tire. He also said the other tire in the back had to be replaced, but no worries since this would not be full price since it was under warranty. As I was walking back to work he called to say the 2nd tire was not under warranty, so that would be $752 for two tires. When I returned to work, I went on the Goodyear website and the 20" tire Goodyear Forterea HL was $228, I called him to ask why there was a difference. Of course, he was shocked and agreed to honor the website price, I don't know what he was trying to pull but business should not be run this way. Actually I was there last month for an oil change, and the mechanic told me I need a new battery when I had just gotten a new battery from Pep boys the month before. So I guess I'm saying don't go the Goodyear in Hempstead, NY because they will try to steal your hard earned money. Buyer beware, and verify what they say. I saved myself over $200, but who knows since he could have lied about the tires having to be replaced