Visited two different female restrooms today! One was filled with several women, including me, waiting for an empty stall, nobody seemed to have any doubt that I would not belong there!
And went into a female changing room, no questions asked here either!
My hair is now long enough that I can make it up into a semi female looking do, I think this helps. At one checkout I was called Sweetie, and at another I was called ma'm! 100% passing for this old girl!