Yeah, I was somewhat confused about this until I read Brandi's response. That makes perfect sense. She obviously had not legally changed her name/documentation to her female name, probably had a credit card in her female name and was too embarassed to show the male ID she probably had (possibly even with her) and showed her credit card instead. When I went fulltime, I had legally changed my name, but had to wait about a week before I could get a license in my new name. During that time, I kept a copy of my legal name change, carry letter and my male ID. I didn't need it, but it certainly was an uncomfortable period of time.
Melissa