GLV, I agree you handled it well. I've had only a couple of unusual incidents.
In one case it became clear a couple of guys were tailing me - I had no idea why. I pulled into a retail parking lot, and out a side exit into a small hole in traffic. They couldn't follow, and I simply lost them. Didn't have to endanger others or use excessive speed - just was lucky enough to put some distance between us. Probably seems obvious, but if I ever felt someone was following me for any reason, I wouldn't get near my home until I had lost them - this is my 'plan', but never have had such a problem.
The other occasion was, ironically enough, in a very nice, small town in northern Arizona. Most of the folks there are salt of the earth. However, as I was driving down the little town's 'main road', a pickup truck coming towards me was rounding a corner halfway in my lane. I hit the brakes, and he turned off the road. As I approached him I honked the horn and raised my hand in sort of a 'what was all that about?' kind of move. My mistake. He immediately made a U-turn and ended up on my bumper. Since this wasn't gang country, and besides, he was wearing a cowboy hat, I slowed down to let him pass. As he was pulling alongside I had placed my pistol in my lap in case the situation worsened. He pulled alongside and yelled at me, asking why I had 'flipped him off'! I told him I was simply amazed about finding a truck in my lane. Of course he didn't accept my explanation, but I apologized for the misunderstanding about the hand gesture. I made it clear I did not flip him off, but he was in my lane. We went our separate ways without further problem. I was really angrier with myself than with him - even if the &*$^#(%)couldn't drive.
Learn the lesson again, Jeff: No Hand Signals, ever.
The cell phone is a great idea where you have time to make it work. In my case, we were headed into the national forest very quickly, and I didn't want to move into more remote country, on a two lane road, in those circumstances.
I would also look for an LEO or station house, in town. If a nut case pulls alongside you, it sometimes works to pull an immediate left / right in a case where they can't follow. [Note that, in addition to weapons training, I believe some high performance driving training is handy in these cases.] And, while I would never initiate the action, and I would strive first to place distance between myself and the problem, it does seem prudent to have your weapon handy in case you are run off the road or otherwise directly attacked. IMHO, I would generally NOT stop anywhere and get out of my vehicle unless it was with an LEO present. The vehicle is my best weapon, especially for exiting 'stage right'. Besides, some of the BG's around here wouldn't have any qualms about gunning you down in that convenience store parking lot - they might have been planning to rob it anyway.
I've just reread Ayoob's 'In the Gravest Extreme', so I'm pretty sensitive about the foolishness of any gun play on the road. By the same token, in Arizona there are plenty of places where being run off the road could leave you with only one person for company in that ditch - the BG that just ran you off the road.
[This message has been edited by Jeff Thomas (edited 01-24-99).]