You should look at what many post offices look like with packages lying all over the place. They have tens of thousands of employees on leave with covid and they don't hire seasonal workers like they used to years ago.

I'm waiting for a package that was mailed 7 days ago and shows received in the origination post office but not accepted yet. I'm also awaiting a UPS package that hit my local UPS office 6 days ago but hasn't been delivered and that's a 3 day air piece.

The situation is the same all over. My local UPS Office has guys in private cars delivering packages.