I don't know why you keep hammering this
Like any other workplaces there are rules. He broke em. Just like if I get plastered and take a crap on the floor of the hotel lobby in front of the entire conference, I'm getting in trouble too.
It was a rule, he broke it. Simple as that.
If it was any other team you guys wouldn't be bending over backward to explain it. Yeah the entire hotel is off limits, no we don't section off parts, the entire property. Really simple.