Thank you! Hmm, depending on what happens, I may need to drop a message to the post office late next week. "If a package for me shows up the week after this, don't just leave it at the door like you usually do. I'll be out of the state, and what if it rains or something? I'll pick it up when I come home." Good to know this could be necessary. Thanks again for the information!
As a former USPS employee, I can tell you that you can even request mail to be held for specific dates, up to 30 days in total, onlline. So you don't even need to go to the Post Office -- you can do it from home.