I've learned that if you think there is something the cops should be able to do about it, and the officer you are dealing with says there isn't, then to get that cop's badge number and get a superior officer involved. and just work your way up the food chain until something happens. 9 out of 10 times, there is a lot they can do, just are just too lazy to do it. All cops are not created equal. A lot of them are just traffic cops than can only hand out speeding tickets. Those cops don't like getting their hands into anything. But usually their boss or even boss's boss will make something happen.