If your post office(s) are that bad, go online and file a complaint... I had to do it several times here at my new place, but the bigwig will put a foot in their hind end and straighten them up...
I had a couple mail carriers that were just tossing packages wherever ( I have a plastic storage bench by the door for packages to be out of the weather with a sign and they ignore it .... no issues with UPS, FedEx..ect.., just USPS ) after a filed complaint , the postmaster called, we talked and the issue was corrected immediately, no issues since. Sometimes you have to remind them who they work for.
I had a couple mail carriers that were just tossing packages wherever ( I have a plastic storage bench by the door for packages to be out of the weather with a sign and they ignore it .... no issues with UPS, FedEx..ect.., just USPS ) after a filed complaint , the postmaster called, we talked and the issue was corrected immediately, no issues since. Sometimes you have to remind them who they work for.