Strange? I think not. What I do find strange,however,is why you assume i’m a guy. For the record, i’m a girl.And I don’t feel as if my liberties are threatened by such a benign request. Not at all.Furthermore,do not assume that just because I can overlook such a thing as checking my receipt as I leave a store that I don’t cherish my liberties,and I don’t keep an eye on other,more important threats to our freedoms,such as Hitlery and The Pony.
I always worry about that. In any case, I tend to use "guy" and "guys" as a unisex term nowadays.