First of all, don't draw your weapon unless you're prepared to use it. For those of us who aren't bloodthirsty, that means don't draw unless the use of deadly force is necessary.
What it comes down to in your situation, as with most others, is would a reasonable person think it was necessary to kill the person who was assaulting you. I honestly don't know.
It worked out well for you riding away this time. You mentioned that he pursued you. What if he'd done more than just pursue? What if he'd clipped your back wheel?
He could have killed you while you were trying to ride away and you wouldn't have been able to do much to prevent it. This is assuming you couldn't outrun him, but even if you could, you'd have to endanger yourself and everyone else on the road to do it.
Just something to think about.
agreed. This is why I pulled over in the first place - to asses the situation and see what I was dealing with. He was pulled over on the shoulder. I pulled up beside him, still in the middle of the roadway at about his back wheel, the bike still in gear. I was probably 6 feet from his vehicle. I didn't want to just pass him when he pulled over because I figured he did that so he could get behind me and chase me after I passed, and run me off the road. When I pulled up beside him and he got out of his car, I moved forward. When he followed me on foot, I moved forward again about 10 feet, separating him from his vehicle. When he continued to approach, I turned around, got his license plate and rode off. This bought me some separation as he was about 20 feet from his car and he had to return to his vehicle before he could proceed. I took the first right turn, which happened to be heading towards my house, but he had no idea where I lived. I watched him in my mirrors and he did not follow me making a right turn. Had he done that, I would have gone to the end of the street, got off my bike, had my hand on my weapon and if he continued to approach, I probably would have drawn at that time. Pretty easy to explain and show who the aggressor was when he followed me right to my house - I live at the end of the street.
I guess you had to be there to get an exact picture of the situation, but as I said in my original post, it did seem like I had a lot of time to weigh the scenarios and this is what I came up with at the time. Fortunately, he cooled off and just drove away.
I really do think that I needed to stop because his behavior (trying to run me off the road through the intersection) really made me believe he pulled over to get behind me and intimidate me or even hit me with his car. Again, many nuances of the situation don't necessarily come across in a posting, but I had a gut feeling that this was his intent, especially since this whole deal was completely unprovoked.
Someone mentioned earlier that he may have been annoyed with my headlight, and that is a possibility, I suppose. It was early evening and I have the brightest bulb available for visibility, but it is pointed rather low and I don't have hi beam, so I can't imagine it was blinding him. Ya never know though...