The FedX guy
I was sitting under my patio naked when he delivered a package, was an older guy. I said sorry for being nude, I am nudist. He said each to their own and laughed. I signed for the package and he hung around for a bit to chat.
Another FedX guy delivered and was sitting nude and he goes "Whoa" LOL, set the package down and couldn't get away fast enough.
I had almost the same this last year. I was naked in the back yard and when I came through the door into my garage a Fed Ex guy was just bringing a package to put in the garage. He saw me and at first started bringing it to me, but when he saw I was naked he just laughed a bit and said he'd just put it down there, and turned and left.
For some reason I was in he front yard nude. It is fairly secluded except from the mailstop. The UPS driver stopped at the intersection to run packages up the narrow road. I saw he had a good view on his way up. Being shy I threw my beige shorts on. He came back and started a brief conversation ... looking down at my shorts for some reason.