Perfectly reasonable response and information to venue staff, highlighting an outmoded model of so-called manners. Gender identification is down to the individual and gender prepositions shouldn't be assumed, if used at all. Names are good, what's up with using someone's name even in the service industry? And, let's face it, sir and madam are used out of an assumed respect but very often carry none. and can be used to be derisory... As we've seen in the tabloid press recently. Live and let live.
Facebook offers 51 gender identities so I'm told... with that number I guess somebody somewhere is going to be offended by / on behalf of someone else somewhere. And so the wheel turns....
If you're a man setting out to look like a lady and come somewhere close, surely it's a bonus being called madam, miss etc.
You don't think that if you were fooled by the outward appearance and then discovered a problem with the undercarriage........you might give them credit and take one for the team