Lauren Bacall did a lot of full-time passing as female . . . And let's speculate here that the other "women" were not all cis . . . Relax! No one cares.
I would have answered the doctor, "It's not Lauren, and you're in some really seriously deep ->-bleeped-<- now young man!"
"Says right here on your license you're male!"
"That's right officer, that's what it says . . . "
Not changing my name, not doing anything radical/invasive/irreversible. (I'm 67, and pretty set on who I am.)
That said, I'm open about how I feel. Wearing the same casual, recreational clothing (Coast Week-end Casual) as everyone else, M & F. Not moving from M to F. We're moving from Male to middle "A" -- alternate, ambiguous, androgynous, asexual . . .
Not wearing the skirts, dresses, etc. Gawd knows I have them. I have cis-F friends who don't/can't wear skirts/dresses. The skirt thing doesn't work for some of us. No "kilts" -- That misses the whole point!
Mostly, I look at style, coordination, pragmatic functional clothing. Layers to control changing temps. Rugged for recreation, panache because it's F rather than M on the label. But mostly I just wear what works. We're less and less concerned about "labels" in all regards.
Lately the larger, more dangling earrings, large hoops, are beginning to work for me.
NOBODY LOOKS TWICE.
NOBODY CARES!