I regularly get USPS notices of delivery at my house, where packages, according to the USPS delivery tracker, were "left in or around the mail box" or were "giv

I regularly get USPS notices of delivery at my house, where packages, according to the USPS delivery tracker, were "left in or around the mail box" or were "given directly to a resident" but they don't actually show up for hours or until sometime in the next few days. It is far from inconceivable for a postcard to be lost in USPS-land and then years-later complete its journey, getting a bar code affixed. This would not be the first time this has happened. Other times, entire bags of sorted mail were lost and recovered decades later and then delivered.