Were missing important details in the story man. What were you wearing when you answered the door?
Also FedEx rules. Speaking from experience. Only people I trust to deliver my firearms-related packages without trying to converse with me about my private mail and/or a visibly repackaged box LOL.
Don't go postal on me, I'm not a believer of custom cables for cans. I was wearing body armor, just in case the FedEx guy was carrying, these days one can never be sure.