If they had just seen you for the first time, then you had also just seen them for the first time. They're probably like that to everybody. I'll bet they give all kinds of unsolicited advice to gay guys, GGs, and everyone else.
Try to think of yourself as an ambassador. Most of the crossdressers these guys run into at their gay bars are pretty flaky and anti-social. Show them you're a normal person and don't take it personally.
Speaking of rude, you're the one classifying all gay guys together as people who are rude and give unwanted advice.
I've had plenty gay guys give me advice before.
http://picasaweb.google.com/racquel9...46284100797826
See that guy? He's a drunk drag queen dressed as the Bride of Frankenstein. He told me he could help me with my makeup. He also told me we should hang out. He also told me I should do drag shows. I didn't take the comment about my makeup personally, and I know I looked kinda ridiculous with fake eyelashes, but it was Halloween after all.
A few months ago a drunk gay friend of mine who owns a salon kept giving me advice about my hair, and he ended up cutting my wig for free in the parking lot and that one looks a whole lot better now.
I can handle gay guys giving me advice on my look. I much prefer it to the drunk pseudo-straight guys and pervy crossdressers I run into all the time hitting on me and telling me their sexual fantasies that involve me. I've never got that kind of rude treatment from the nice friendly gay guys who happen to give a lot of unsolicited advice.
edit:
BTW, where were you? Adonis? The Dock? A smaller Cinci club?