While coming home from work at 11:45 p.m.

Sea Isle City - While coming home from work at 11:45 p.m. my granddaughter encountered a police officer on the promenade while riding her bike with her mother and two other workers.
He very rudely told them to get off the promenade with the bikes and go down the steps with them in the dark. The situation was handled very unprofessionally. Where are the police at the center of town where all the rowdy kids are hanging out using bad language and drinking?