[IronicDeadBird]

If you physically block the balls from getting out on the field and have the balls stay on the driver side of the station you could backup the ball holding and force more then the cap of 5 or 6 balls or whatever in the station. This would fall under a strategy forced at making the other team receive fouls. At the same if you were parked against the wall and the human player put two balls into play you would be trapping them against the wall, this is a definition of controlling and you are only allowed to control one boulder at a time.
Pick your poison.