So I guess it would be worth it for the good residents of the area to arm themselves and take out what the police can or will not.
Open a store in teenland, where the customers order through a bullet proof glass, pay, then the employee goes into the warehouse and gathers the order, and slides it into a recovery area with locked doors on each side. This way drivers are not endangered, employees are not subject to sudden female brawling, shoplifting is impossible, but groceries are available in teenurbia