I started this thread and I want to make one thing clear: I am NOT suggesting that anyone should show up at a church, school, college, etc., with the intent to antagonize or challenge that institution's beliefs. I agree, if one knew that a particular place held a particular belief and they wanted to feel the full measure of hospitality, then by all means, they should behave accordingly.
My question was essentially, if someone -- not meaning to antagonize, challenge, disrespect, etc., -- did show up (in this illustration, a female in pants) simply to pay a well intentioned visit, would they be turned away because they (perhaps unknowingly) arrived in violation of such a belief. I believe Sherry's response, albeit from an incident that occurred many years ago, described such an occurrence where they were turned away.