A couple of CO's got fired, IIRC, recently in Region 3 for this. Got caught in a random highway gate vehicle search coming in to work. All was good and legal with the LTC/CHL part and/or the "your car is an extension of your home" part. However, pistols were unsecured coming into the lot.
I have had my CHL/LTC forever and a day. Have only open carried, in public, on one occasion. A full size 1911 worn with a t-shirt and a flannel shirt, unbuttoned. SO it was sort of "openly concealed". That once was enough for me.
Some old cat in my district open carries a Sig everywhere. I see him in the grocery store all the time, scowling like Clint Eastwood in Gran Torino. He is a moron.