Whatever.
Let's look at this from a logistics point of view. The current method is to have the center load 2-3 trailers by hand. The trailer is then driven to the stop and parked on a door. The PC driver then unloads the trailer by hand, scanning each box, and loading those on to a pallet or rollers. When he is almost done with the trailer he calls the center so that they can send the 2nd trailer there. Trailers are swapped and the process continues until the stop is complete. The OP says it takes the PC driver 4-5 hours to complete the stop.
Now, let's look at what I think the center will be doing. The preloader will scan and build each pallet. The pallets will be shrink-wrapped and loaded on to a trailer. The trailer will be delivered to the consignee, the pallets will be off-loaded and the receiver will then break down each pallet as needed. The receiver will sign for the delivery after the last pallet is off-loaded on the DIAD which the preloader used to prerecord the stop. The pallets are shrink-wrapped so there is no need to count boxes. A delivery that used to take the PC driver 4-5 hours will now be done in 1-2 hours by the feeder driver(s) and will free up the PC driver to be used more efficiently.
Our center does this on the pickup side. We preposition trailers at larger accounts which are loaded by the shipper rather than have PC drivers load these pickups by hand. It is much more cost effective to do it this way.
This makes sense. I know, common sense and unions don't go together, but this is a good business decision.