http://tampa.cbslocal.com/2015/11/24/police-bust-weekly-mahjong-game-played-by-elderly-women/
Local cops, having solved all the other crimes, decided to bust a mahjong game. The perpetrators range in age from 87 to 95. Who called the cops? Condo management. It would appear that in fact they didn't violate any law, but I suppose the giant wheel of justice will have to grind all this into dust and answer that question.