I got them at the Hess station as I was leaving Magic Kingdom by the AAA place. They also have the really inexpensive pizza. I think it's like $7 for a large pizza but I don't know if the pizza was any good. Haven't tried that yet.
They probably have them at that one also. We usually stay at POP so the Hess station close to the road going to the Yacht/Beach Club resort is the one we go to. They have some good cream cheese jalepeno poppers too. Last trip we stopped at a 7-11 gas station for a pit stop......there was a man standing close to the register eating some hot wings that looked and smelled wonderful......