Besides the odd way of the truck folding together and driving backwards I wonder why it is piercing the airplane and overriding the vehicles.
It's surely something related to how the scenery was made. GSX vehicles try to use proper vehicle paths, defined as such but, unfortunately, not all sceneries are made with enough care, to have vehicle paths that makes easy to access the parking spots, so GSX must try to work with what is there.
Is that the default scenery, using the default AFCAD ?