Thanks for the feedback guys. It is great to be part of a community where people like myself can get invaluable info firsthand from vets. I've been a bit OCD on devouring info on AAS and bodybuilding in general for almost a year now, though I've been lifting off and on for probably 15 years now.
As per your question, it was a domestic source that I had a big order processing delay with, and he is apparently eager to fix the issue as quickly as possible with me. However, after my post, I looked on the USPS website and it states that express mail can opt to waive the signature requirement. It's kinda after the fact at this point, but I emailed my source to let him know what I discovered. Most likely he already knows this and wanted the delivery confirmation? idk.