can’t relate, but that totally sucks.
you’re lucky you didn’t get carjacked too.
having a gun would be bad because i know i would have shot him right in my car and that would have been a pretty sticky situation. especially over $300. i’ve never heard of anyone actually having anything but newspaper/rocks/bricks in a sealed box sold on the street.
but at least this tells me not to mess with them. i know some of us think that if someone like that approached us with a “too good to be true” deal we might mess with them a little bit. i’m just going to stay far away