I have not seen any law that states it must be unloaded while being stored in your vehicle unattended. I have a buddy that has one of the lock boxes bolted to his floor board. There's many options other than running the cable through your seat frame. Be creative. Mine has a magazine disconnect. Depending on the situation, sometimes I will drop the magazine and store them separately. Even with a round in the chamber, it will not fire with the magazine removed. I figure at least f it is stolen, it cannot be used against someone immediately. I only lock it up if I can't carry somewhere. If I am in the car, it's on me or very easily accessible.