So pissed..

I'm currently 7 months pregnant, last night me and hubby went out for a little bit then went home and started watching movies. Literally 10 minutes after getting home we hear banging on the door. Mind you, it's like 2 in the morning. I open the door and it's like 10 fucking cops saying that they got an anonymous phone call saying a pregnant woman was in danger WTF. I was so fucking infuriated I called my landlord to complain but he doesn't seem to care too much. He hasn't called us all day to talk about it. We haven't been living in our apartment for a month. I can't seem to find a reason why neither of our neighbors would do this. What should I do?