While I'm sure there are smart-a$$ know-it-all LEOs out there, I've been lucky enough to not ever meet one professionally (there is this guy I see from time to time, socially, who is a LEO, a dumb-a$$, and a jerk but I don't know if that carries over to his job or not).
I have been stopped maybe 15+ times in my life (which may not be as often as it seems as I am getting on in years).
Never had any hassle about carrying and have always been treated professionally, with respect, including well before TX had a CHL law, and I've been carrying, for the most part, since before I had a driver's license.
I've never had a LEO act like he thought I should be afraid of him/her.
Hope it stays that way, but mostly, will hope for no direct interaction