I am not inside my truck, at the moment, so there are no firearms inside my truck. If I get into my truck, there will be one or more firearms inside my truck, while I am inside the truck.
If I have to travel to a gun-free zone, I will carefully evaluate whether I should trust a lockbox, inside the truck, for momentary/short-term storage, or, travel without a firearm.
I made So. Very. Many. BMV report calls during my 33+ years of LEO-ing.