Well no the current law is simple, a man is it allowed in a female restroom. This applies to people born a man or woman and what you express yourself as isn't considered in the law. My argument is that it should stay this way to avoid future cases of harassment. If work at a restaurant and I see a man dressed as a woman walk into the female restroom I can legally intercept it. Oh sorry on your question, if one of those girls walked into a men's restroom, even if it was extremely obvious to whoever saw it that it was a man it will still cause mild commotion. The same for if it was a transvestite dressed as a man going into the female restroom.