I agree, storing a tube in your car/truck would be of questionable value. Carrying a few loose bullion coins would make more sense to me - tuck a couple in the watch pocket of your jeans for example. The tube in your BoB makes sense, if overall weight isn't an issue to you. I always have to fight myself on that, balancing what I want to carry versus what I need to carry- ain't getting any younger and it shows with carrying capacity. A tube of silver isn't exactly light, and I imagine most folks you meet wouldn't accept it as they really don't have a clue about its intrinsic value.