Play an audio loop of classic Sinatra and Mancini.
Will take all of 5-10 minutes to clear them out.
The transit authority did something similar- they had a problem with teens hanging out in one subway station, so they started plays classical music over the PA system. Problem solved in less than a week.
That’s an interesting suggestion. He would have to put the player where the kids cannot steal it, if they haven’t already.
Whatever happened to homework and chores?/Sarcasm