That wasn't the point.
The officer challenged the OP by telling him that he should read the license where it says "concealed". My point was that he could've quickly and easily rebutted this by doing exactly as the officer said and showing him his license. Two seconds and the officer's argument crumbles.
Yeah, I'd have been all over that.
"Here it is, officer. I'm sorry you chose to stake your position on such an impossible and easily disproved error. Will you be requiring further correction before I leave you?"