I would not do the po box route personally. You're on camera there and if they're watching the box here you come picking up steroids. The camera footage becomes evidence and Good luck explaining how somebody was using your box to order illegal drugs but that person wasn't you. Plus if Leo is interested in you that much you'll be getting handed a search warrant for your house anyways. So why not stick with the possibility that it was a scumbag trying to snatch it from your porch when you was at work? With the "it's somebody else" route hopefully you ordered them using a vpn and paid with Bitcoin so the police shouldn't have the evidence to get a judge to sign a warrant to search your house. All they have is what led them to this delivery.