[cinFLA]

No, you're wrong. Certain places of "public accomodation" may not refuse entry by people on spurious grounds.

They did not refuse him entrance. Only that he wear appropriate attire.

[Illbay]

"Appropriate" in what way? They cannot tell him he cannot wear a T-shirt with innocuous messages on it.

I'm willing to bet money that if this article were about a guy wearing a T-shirt that said "Support Our Troops!" on one side and "Down With Saddam!" on the other, you'd be livid that the mall cops gave him a hassle.