I once tracked this down! They're scanning it delivered to protect their workers from being punished for their location being criminally understaffed. It's been

I once tracked this down! They're scanning it delivered to protect their workers from being punished for their location being criminally understaffed. It's been going on in some zip codes for years. Expect a lot more of it this fall. That 2 day delay is because sorters and carriers are scanning packages delivered in bulk in their vehicle, and then either loading or delivering only a subset of them, due to your local sorting/delivery teams having been overwhelmed by package volume. Eventually the overflow carriers catch up on the pile of packages, and yours is either included or lost. The early delivery scan protects them against retaliation — but also hides the necessity for more staffing. This isn't a defense of their actions, but since I did the months of diligence with my local post office on this a few years back, I thought you might be curious to know why. ps. Palo Alto? :)