Has anyone else noticed this?
Yep. It is another reason why I, personally, dislike the Donner cut. Superman going for what is basically revenge, on a guy is not
what Superman would do. However, it adds to a humorous scene, so it can be taken at face value, since the trucker guy was clearly going to start shit again.
However, if you add the fact that the events with the trucker never took place, it just makes Superman out to be a total dick for no apparent reason.
The whole scene makes no sense in the Donner Cut.
But then again, Superman does have a legacy of being a dick, so maybe it does make sense.