For Columbus weekend DD and I went there 3/4 of our nights. It closed at 10p that weekend, after 9p or so they stopped seating and offered takeout beverages only. It depended how crowded it was.
So you can grab a beverage and sit in the lobby if needed. Lots of people also grabbed and took to their rooms.
Tambu will also have beverages you could grab one and walk with it over to gf, I have taken cl wine from poly and then walked to gf to enjoy.
*Wow I just looked and it is open to 11 and 12 now. Sheesh that would have been nice lol.