Wow, my post office has a cow if I don't sign things. Seriously, even if the date is a day off, you would think the world was ending.
Random story: I was shipping a bunch of items the other day and just needed to sign them, and I had handed him to packages to take care of first, and he almost pushed me out of the way to help other customers fist. I was so annoyed, I just had to sign. I was done way before him by the way. Ah, post office...
I hope it makes it there, I don't know...