My company's main office is in Lafeyette LA. The majority of our vendors are in Houston. Since 1/1, I've probably had a dozen call me about outstanding invoices. I send them to AP and they've all had checks cut and mailed. Head of AP called me yesterday wondering what was going on because yesterday alone she had 6 vendors reach out to her about not receiving payment. I told her what the deal was with the Tine USPS, and she said she's just going to start doing ACH whenever she can from now on to avoid this and use FedEx/UPS for the whatever remains.
And yes, USPS is the scum of the earth. Just last week I was sitting in our living room and saw a postal truck pull up, dude bro hops out, walks halfway up the driveway and throws my package onto the lawn. Broad daylight. Not a care in the world. I could've reported him since I caught it on camera, but I prefer not to wake up to my house burning down in the middle of the night.