It reminded me of some high schoolers I heard on Houston's Pacifica station in the late '80s. Their principal was a hardcore Christian given to reading prayers over the school intercom, even though this was a public school. He had enacted a rule against wearing black, on the grounds that such clothes were "Satanic."
I called in with a suggestion. Stop wearing black, I said -- and spread the word, loudly, that "the new Satanic color" is green. Wear green relentlessly and defiantly. Either the guy will ignore it, in which case you get the pleasure of insulting him without repercussions, or -- more likely -- he'll ban green, too.