I have 11 years experience working for UPS (which explains my chronic pain) I can tell you if it was a next day air or even 2nd day, if the package is left in the hub and was suppose to go out,it is not uncommon for a manager to grab it maybe on his way home, and make the delivery since they get their butts in a sling if packages are missed. I've seen it happen many times. Even more frequently around the holidays. Hope this helps.