Hello Dieseljocky, and welcome to the Asylum.
I realize that it would be easier to let it be... but do the hard thing and press charges. It's this sort of person that, later on down the road, might actually go beyond gun waving to gun shooting.
Based on your comments, I don't think you are the kind of person that would allow an innocent person to be harmed if it was in your power to do so... this is your opportunity to possibly save someone's life.
Shoulder Drive Nicholson Club