[somedudefromhouston]

a locked vault box in the trunk of your car might(should) be exempt from the employers petty policy. It would require a search warrant on the street if a LEO wanted to look inside it .Otherwise a small safe screwed to the floor in the apartment in a location that prevents levering it off the floor, the carpet wont show a few small screw holes.
In addition to the other ideas, the old gun in the cutout book trick, laundry detergent box, dog food bag, really anything that allows for hiding in plain sight. I reckon a thief is going for the usuals, night stand, sock drawer, hall closet top shelf etc. Get creative, you arent trying to outsmart Mensa candidates with this. Sit and look around you for an hour in your home, it will come to you.
I doubt many thieves troll forums like this looking for our hidey holes.
I have multiple safes, just because. Only a a few guns outside the steel box at anytime. 2 for the wifey, one on my side, the night SD comes out when I get home.