SNIP So I ask you. Do you carry just because it's legal, or do you consider the circumstances and surroundings before deciding?
I carry for defense of self and others.
I do not carry in prohibited locations.
The only consideration I give to circumstances and surroundings is whether to OC or CC.
Glove compartments and consoles are the first place car breakers are going to look for a firearm. Also, a car break-in can happen really, really fast. Just turn your back for two minutes--your gun is gone. If you want to store it in a car, lock it in the trunk until you can get an armored, lockable, screw down-able container just for handguns.
Its best not to let anyone know where you store your arms. As you've discovered some people don't take it well at all.
If I talk with someone about where I store my gun its in the context of a conversation about where to store guns and only with someone I know is a solid supporter of 2A, and someone I can trust to keep their mouth shut.
There is an even chance that your supervisor's supervisor is already writing aquery up-channels about policy and legality of your in-car gun storage. Prepare for fall-out. It may not occur, but prepare for it just in case.