A male high school student was sent home the other day. He was wearing women's clothing because the teen is transgendered. He stated he had worn girl's clothes to school before, but this time he wore a wig and stiletto heels and was sent home for violating dress code policy. The policy does, in fact, have a regulation prohibiting wigs, but it is very specific referring only to wigs worn just to cover up a hair style that does not conform to dress code policy.
Source: CNN (Enjoy the video)