I suspect that we'll see regulations that blunt the impact of this. E.g. long haul trucks will be automated, but will require an alert driver behind the wheel.
In the short term I suspect that's more likely. But what that turns into is a diminishment of the skills required to do the job (for a value of "skills" that includes "staying awake and driving a truck for hours at a time along lonely Interstate highways", which may not be everyone's cup of tea, but certainly acts as a barrier to entry). That generally means more competition in the job market, and more competition on the labor side of the equation means less upward pressure on salaries.
It's not as bad as having your job automated out of existence, but it's still not good for people in that market. And I think there are likely to be a lot of jobs that are like that: not eliminated completely, but made in some way easier or less onerous, such that the labor pool is bigger.
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