Katie...

Living in a major city, every time I turn around I see people trying to turn a profit from the tragedy in New York. Unfortunately, this type of creep preying on the patriotism of others is a fact of live that we're forced to endure now. You were not out of line and I'm glad you had the guts to tell him your feelings.

Should I have just kept my mouth shut?

By using the word "I" you weren't, by any chance, referring to yourself here, were you? This type of introspection worries me!