As a huge fan of old school D&D, I have noticed an absurd amount of mentally ill people using D&D as a way to act out their depravity and twisted self-delusional fantasies. I have noticed it in the game store, among (ex)friends, and in many 5th edition communities.
The newest edition especially makes it easy for people to play overpowered furry hermaphrodites and there's a disgusting trend amongst modern players to demand roleplaying sexual depravity.
It's quite upsetting because I would like to just play a classic beer-n-pretzel hack'n'slash with minimal story, maximum murder, and no fucking queermoes trying to make me roleplay faggotry.
Just trying to help. It might work, but definitely depends on local enforcement. Even a noise complaint might work if they're really loud. I'm in Los Angeles, blue by most accounts. And plenty of open depravity on display in some parts. Even so, there are still differences between LAPD in Hollywood, Sheriffs in unincorporated parts, and police in separate cities like Culver City or Burbank. The best is to ask a local cop if there's anything you can do. It kind of feels like fighting the tide, though.