The probable answer to the mystery is obvious...
I had a former employee of the PO tell me years ago that workers almost routinely take magazines home to read before delivering, and steal what they can, particularly when facing lay-offs or pay cuts...
Donny L
PBIA/ACS Instructor
Boy does that kind of thing make me sick, especially weeks before I entrust a butcher to handle my hogs and return the meat I actually raised.
Some meat processing companies in this area have been guilty of keeping/high grading whole sides of beef/pork ...
....makes me sick to think someone would steal from packages in route. Hang 'em by the gonads.