Sorry. That sort of driving behavior has more in common with brandishing a firearm or threatening someone (i.e. Assault). Don’t have to show damage in those cases to put them behind bars.
Two more examples of behavior that is punished where it shouldn’t be. Brandishing a firearm and threatening somebody cause no actual harm to anybody. That is free expression in my book and should be protected under the 1st Amendment. You want somebody locked up because they hurt your feelings, I bet. Man up and be prepared to protect yourself in case threats actually turn to actions.