Looks like you graduated with honors from the "Dave Workman school of range diplomacy"
I've written about knuckleheads like this.
I had a guy scope me and my family one year while deer hunting and I know that gun was loaded. I stood up, in blaze orange, and he boogied along with what looked like his dad and his son...three generations of idiots.
Got my wife and kids into the truck and went down one road and back up another to have a chat with this fool, but he was gone by then in a cloud of dust.
On the range there is no excuse, none, to be aiming a gun toward someone, even if it's not loaded, even if you're just taking photos.
I take photos all the time on gun ranges for my magazine reviews. I can't think of a single time when I aimed a muzzle in someone's direction.
I've written too many stories about people who killed someone with an "empty" gun. I've seen people who were killed with "empty" guns. Trust me, you ain't missing anything by missing that opportunity.
You did what I'd have done, with more colorful language.