American Express Deal at Snowshoe

I'm heading up to the shoe this week but don't have a Harris Teeter card to get the buy one get one free deal. I just found this web page http://www.mylifemycard.com/ski/ that offers the same type of deal but with an American Express card. Just follow the links to West Virginia and then to Snowshoe. Has anyone used their American Express card to get this deal?