Yet another trans/bathroom post

After reading this article about a trans woman arrested for using the women's shower, the question plaguing my mind is:

What Would Ann Althouse Do?

(Context)

UPDATE: Ted Frank thinks unisex bathrooms reduce the cost of committing sex crimes. I would think that having bathrooms open to both sexes would also result in a slight increase in deterrence of sex crimes, since there would be twice as much traffic in one large unisex bathroom than in two single sex rooms, and the expectation that another man would be likely to enter at any time might discourage a sexual predator, given the tendency of most men to not be evil rapists or rapist collaborators.