Being you have a coupe, I don't think you can wash it "too often" as long as you don't mind waxing more often. If you had a roadster I'd have a different opinion as I think too much washing with soap on the fabric top might not be a good thing.

Hey, Jackson is just up the road from me (I'm in Germantown right now where I work, and I live in Beaver Dam). I drove the Crossfire to work today since the weather is gorgeous!