[bnralt]

I don't think I've ever been in a movie theater other than restaurant/theater hybrids (where tables have specific waiters) where this was done. But either way, the author says he was working the bar (which sounds more like a bar/concession stand hybrid), not serving tables.

[alistairSH]

The Alamo Drafthouse chain of theaters, of which there is at least one in Austin and one in the DC suburbs, has table service. And, if I remember correctly, the bar is set-up like a normal pub bar (and separate from non-alcohol concessions). So, you can order a drink in advance of seating, as you would at a a pub (where you'd normally tip the bartender) and you can order drinks at your seat.

It is a bit strange/confusing that the author didn't clarify, as very few theaters serve alcohol at all. And most that do don't have a stand-alone bar or table service, just beers at the concession counter.