I know it’s not the law , but I do think it’s prudent to keep your weapons in a safe. I don’t think it rises to the level of negligence, but one day it may. (Full disclosure .....I don’t sell gun safes for a living lol)
I am not going to feel badly if I am storing my guns behind locked doors in my home or my vehicle and someone breaks the law, breaks in and steals them. It's their fault for being a criminal, not mine for following the law.