I'm tracking a pkg at USPS.com and it's showing 2 cities/stops behind what Amazon's current tracking is showing. i.e. Amazon is more up to date. There must be a more efficient method Amazon uses to track than the general public's use of the USPS website I guess.
Not the first time this happened. Sometimes it shows a pkg still across the country and it's in my mailbox that day.
I'm also thinking Amazon is using USPS more often now than smaller packages going on their trucks.
Stay cool everyone, it's a heat wave out there!