Reminds me of when I bought a furnace and AC unit from a place in Long Island NY, and had it shipped to trucking depot in Great Falls Montana, as it was the closest place to the Canadian border when I could drive down and pick it up. I got a call that my stuff had arrived, so I borrowed a truck and spent most of the day driving to the US. Get there and there is no sign of my furnace. It's on a 4x6 ft pallet, so not something that is easily hidden out of sight.
After a number of phone calls by the guys there they find out that it's on a truck somewhere between Salt Lake City and Kansas City. Turned out that the trucker in Montana delivered the paperwork to the office and forgot to unload my pallet, as it was at the front of the trailer. Guys in the office called me based on the paperwork, and didn't actually check the warehouse.
Fortunately, they were able to pull some strings and get it delivered to me, after I (almost literally) held their hand and filled out the customs forms to get it shipped in-bond across the border. Took awhile, but it did arrive.
So I can sympathize with the empty truck scenario.