I'm also curious if police are supposed to respond or not. It seems to me like they are, since the police show up when some a-hole calls 911 because a fast food restaurant doesn't have the food item that they want (has happened more than once in the news).
I have a different question for police on the board. How do you respond to a "man running with a gun?" I was running and slightly open carrying the other day and a couple of police cars drove by and I covered my gun up before they passed me. I don't think I'd like to be contacted in that situation though, mostly because of where I live and how frequently the police show up. I was clearly jogging, but since I wasn't wearing spandex, a race number, and it was at 11:00 pm at night, I have to wonder how the police would have responded.