Everything you read *says* they won't feed them, and they won't feed them meals. But I had a small unopened box of cereal that we had gotten from breakfast in DD's bag. When I picked our DD up, they were having a Cheerio's party with the cereal. It was cute, 4 or 5 of them sitting in a circle waiting for their peices.
So, I guess if you bring snacks they might try to entertain them with food if all else fails.