If he was indeed talking about inappropriately skipping the line, then this guy is a bad actor. But I should point out that we don't have any idea - the situation could have been very misrepresented - and he could have done nothing wrong.
But given the public information ... this Tweet is going to come of 'Snitches Get Stitches' in a 'lacking in self awareness' kind of way, as opposed to the 'I was slandered and misrepresented publicly, and that can be very damaging, I'm glad this issue is behind us" kind of way.
Why are adults in the US using Twitter/GIF memes instead of finding thoughtful and mature ways of communicating this stuff? I don't like this evolution.