What I find odd is that none of these witness's commented on his orange/red hair. I realize he may have had on a cap but that theater was filled to capacity. Someone had to have been sitting next to him or directly behind him yet no one said “the guy with the bright red hair got a call”.
It was a midnight showing. Did other people dress in costumes related to the movie.
Like Rocky Horror Picture Show and Mommy Dearest, people showed up in costume.
Even if it was not a costume event, maybe people just nudged one another and pointed out the idiot in costume.