I've been using the women's room exclusively for years, but about a year ago I went to an event at the De Young Museum that was a celebration of the costumes of drag performer Peaches Christ. Peaches herself was there along with a number of other drag performers in costume. It was a big event and the number of bathrooms limited. There was of course, a line coming out of the Ladie's luu. I really had to go so I decided to use the men's instead!
First, I don't look draggish at all and pass most of the time. I'd come straight from work and was wear office attire. Some male heads turned when I walked in but I just walked over to a urinal, did my business and left. I walked out just as a security guard was passing by.
"Girl, just what are you doing in the men's room?" I told her I was one of the drag performers. She gave me a once over , shook her head and said "Whatever" as she walked away.