Originally Posted by Frank Ettin
Report the incident promptly and truthfully.
If the other guy gets on the phone to the police first complaining about the nut job waving a gun at him, you'll start out telling your story in a hole you'll need to climb out of.
"Police? I am at [location]. I was just assaulted by a [description] male/female who threatened me with a [weapon]. I have a license to carry and I displayed my carry gun, at which point the assailant ran away. What would you like me to do?"