The problem, to me, is Cholera Joe's circling the table to let everyone take in his armed status. To me that is much more offensive behaviour than loud talking at an all night eatery.
And besides being offensive, it was dangerous to those boisterous diners. There are folks on this thread who say they would have reacted violently to that. Thankfully, no one took that approach and common sense prevailed on all sides, but I think implying deadly force over a casual disagreement is very bad stewardship of a weapon.
Talk is cheap....a 9mm pistol barrel up your nostril will produce a violent result...its called soiling ones pants......