Right. I guess a lonely truck driver can not do much more than call the cops, a good alarm system might be sufficient.
To figure out which truck has the iPads and get away with them you'd need:
- an insider to know the time and content of the truck
- stop the truck
- unload the truck at the spot (it will refuse to move your way)
- deal with an alarm system (maybe lights and sirens)
- get away and sell all the high value goods despite their serial numbers
Should it become a problem we'll just ship all the boring stuff autonomously and the rest with a guard that needs no extra breaks and can sleep on the road.