Nobody is watching the area where the soda/coffee/drinks are. We were there last week and we all bought the refillable cups (12 of us.) The first day, we filled them up with us and carried them to the park so that we would have stuff to drink for a bit. The problem is that then we had our mugs to carry for the rest of the day. We had the dinning plan and when we ate at the food court, we also had a beverage, so we ended up with a lot of powerade bottles. In the morning, we took a few of those bottles and we filled them up with ice (a few of them) and some soda or pink lemonade in the others. That way, when we were done drinking them, we could just throw them away and not have to carry them with us. We filled them up all week and nobody ever said a word to us. Like I said, we did have the refillable cups, and I always buy them just to have, but you basically can fill up anything and nobody would say a word.