Walli, I had to laugh when I saw your "Kentucky Highway!" Hillbilly Highway sounds more like it!
I will see if I can help too, but I have never gotten a smashed box. Our post office is great, and we must have a good sort center in Cincinnati.
I'm going to start sending and receiving all birds at Heathers PO if it's ok with her. Stuff actually gets delivered overnight to her PO while just a few miles down the road it takes an extra day.