Clothe the Naked
I wear my Get Out of Hell Free T-Shirt regularly and I get at least one comment/compliment every time I do. I carry GOOHF cards in my wallet so I hand those out to anyone who comments on the shirt I deem worthy of looking at your site. I've never had anyone tell me that the shirt is offensive, interestingly enough.
Then again, look at the other shirts that a lot of folks are wearing these days.
Marc, California