I think I would have called 911 anyway. If the shady characters had wanted to they could later call the cops themselves on you! It's advisable to get a paper trail with the LEO's just in case in instances like this.
I'm a 66 year old "newbie" on here. When I owned a bakery (before CCW laws) I carried by permission of the local LEO force and had to draw twice. Once to stop a carjacking/robbery on me and the other to stop deadly force aggression at my home.
Neither time was shots fired. Seeing the firearm was all it took for an attitude adjustment by the BG. LEO's called both times. PTOA (Protect Your Own A$$) is a good rule to live by.
I'm on about six forums now and like them all. Haven't we all been "newbies" before? When each of us started on a new forum wasn't our post count low a first? I'm beginning to wonder about this site. Did I make a mistake about joining?
"We must reject the idea that every time a law's broken, society is guilty rather than the lawbreaker. It is time to restore the American precept that each individual is accountable for his actions." - Ronald Reagan