You have been cited under § 5.03 of the Public Courtesy Code: Stationary Occupation of a Dance Floor
YOU'RE A TRAFFIC ISLAND.
You have chosen the exact center of the floor to stand completely still, holding a drink, at maximum width, while the room moves around you like a river around a rock. The perimeter exists. The perimeter is lovely. It has a rail.
This is not a fine. There is no fine. Think about what you did.