I have called the hotel. Consumption of beer can take place discreetly by attendees. However, it must derive from your room if it isn't served by the hotel.
I have solved my problem during my correspondence with the hotel.
Another Rule needing answered, this one for Paizo! Can I label my beers with Pathfinder Images? It is only for "private" consumption, though someone from Paizo ..."might" see it.