Well I'll be darned. LOL! The people at my p.o. counter are probably tired handing over the black boxes. LOL! Most of the times my husband is there to get the package before they have time to put the slip in the box letting me know I have a package. Yesterday morning there was no slip but my tracking said it was available for pickup. My husband told them there was no slip yet but he gave them the p.o.box number or tracking number and told them it was a 'black box'.
They went right back there and got it. LMBO. ETA: Of course I only select standard shipping too. I think deliveries to the P.O. only ship using standard shipping which is fine for me. If I order on a Tuesday, my package is there for me on a Saturday. 4 days isn't bad for me.