The best way to get cops to respond, I have come to understand, is to offhandedly mention to someone (away from the phone, not into it) that you heard that there was some drug money spotted strewn about the hallway. Then all the cops would have rushed in straight off to Arrest the money and bring in more revenue for the agency.
Visions of the LAPD’s Rampart Division, where the cops robbed the drug dealers.