Even if autonomous trucks managed to handle digital logging they'll still get stopped for inspection due to weather, traffic, and load size. The rear tandem adjustment takes place on the trailer and is mandatory for safe operation so, youre building autonomous trailers too (no one is).
How difficult would it be to build a semi-autonomous system where e.g. the forklift operator (or whoever else is involved in unloading/loading/connecting the trailer) performs the manual actions on the trailer while the robo-tractor does the parts that require driving?