If you can remember what the guy looked like, etc, wite a letter to his manager (pretend you are a GG) and describe what a jerk he was and how insulted you are. You may get some free food coupons out of it and put the a-hole on thin ice.
Fact is, there are many masculine looking GGs and (inteligent) employers know they better not say anything as they can have a big law suite on their hands. So, his manager would probably wecome your input.