Follow up. Talked to my salesman yesterday and they offered $100 for the tire but it seems a bit low. $200 would have been acceptable even though it wouldn't even cover the cost for the purchase, mount and balance of one tire let alone two. I say two because I can't have one new tire on the drivers side and a used on the other.
I called my credit card co. yesterday to inform them that when I get my bill in several weeks i plan to contest the charges. Bottom line: it's going to be a while before this matter is resolved.
Valk, thanks for putting me on the list; it looks like fun. If I can get over my phobia of putting miles on my car I'll join you.