I don't think the beginning of this story or the middle part is important.
Whatever steps led to the guy's needing to show the officer his permit is not of great import. Once the guy showed the officer he was legal to carry, the officer should have ended the dialog -- or perhaps given the guy a few friendly pointers on concealing (even if the attorney was being a jerk -- some hills aren't worth dying for).
Of course -- take all this with a grain of salt . . . I live in Oklahoma. I have had 3 or 4 run ins with the cops in the last year (I was on the good side of the law in each one). In all of them, at one point or another we talked about guns, and conceal and carry. I can't imagine this same story in Oklahoma.
Word.
Michael Brown