WOW! That is the worst mess I've ever seen! We have a really small PO here too. Heck they close between 12:30-1:30 or if only one employee shows up!! hahaha But my eggs marked "fragile, furture baby chicks" where delivered to my door  (it's almost a mile off the road, first time for this) in a USPS plastic carton stuffed with newspaper & box cradled in the middle! Wouldn't get that in the city we left thats for sure.
I'm sorry about your eggs. I would certainly make a complaint to someone!! It looks like it was done on purpose.
KAT