If the local police can dedicate four officers to a DUI checkpoi

Court House - If the local police can dedicate four officers to a DUI checkpoint, then why can't one officer do something about people throwing beer cans out the window of a car? If you check Nummy Island, there is a makeshift boat ramp. There are tons of beer bottles, beer cans, construction debris and so on. The boaters that dump beer cans are not only littering but they are also drinking and driving and drinking and boating. If the township does not want to patrol the area, then they should close the ramp and put up a guardrail across the ramp.