I'm curious about the 30 minutes.
Did it take that long because you were showing them the ropes, or were you actually under some sort of suspicion until you FINALLY managed to convince them after half an hour?
again just curious as I wasn't clear from the OP how friendly they were.
I think the police were a little bored, and the police officer kid was about 12 and new, because we went thru the whole list of possible things I could have done wrong. First it was I was smoking pot, then it was homebrewing is illegal (I live in Colorado we're perfectly legal), then it was an open flame on the deck (again legal), and then we came back full circle with somebody is illegally smoking pot in the area...which I find hard to believe they know since medicinal pot is allowed in Colorado...I also live below a woman who calls the cops 2 a week (it's an average so that number can go up) for anything and everything.
In the end the beer was brewed, I "got a warning to not do anything illegal" HA!, and the lady upstairs is getting the hoppiest IPA I can brew next week.