They did. I read that these trucks are outfitted with 360 degree cameras.
That may work as long as the cameras work, and they team drive (two drivers, almost always rolling down the road) until they stop in some place like West Memphis, Arkansas, for anything more than fuel. It's actually safer at the Pilot in South Memphis, Tennessee (and people have died at that one, too).
If the cameras are mounted on the back end of a trailer...they won't be eventually, if they can be removed. Gone in 60 90 seconds. Heck-- it could be gone while stopping just to fuel.
Not every place is rough, but most anyplace can have thieves.
Elizabeth New Jersey would be a place where it's first figured out how to best remove [steal] the things. That place is another one to avoid. A guy can get himself killed for no reason much at all in those places...