I have a friend that is starting a business that requires shipping of the materials he works in that, as far as I know, basically mirrors the shipping restrictions that are placed on guns (overnight delivery/adult signature confirmation). The problem is that it is for now a part time business and he can't be at the office to sign for the packages. So he is kind of stuck. I think he said that two of his suppliers use UPS and one uses FedEx.
I thought this being a gun board full of gun dealers, someone might be in a similar situation and have a solution.