Driving away, if possible, is probably the best way to deal with Ragers. My problems occurred during a time when I couldn't do that: How does a VW Bus outrun Big Iron?
Had I been in one of my street monsters, I wouldn't have worried about guns, clubs, knives or spears. (One, a Chev Healey; the other, a 427 Camaro.)
I had one other event, where four guys in a Mercury Cougar started "misbehaving" when my wife and I were on our way home in the wee hours. Now, why they thought they had the edge over a 3/4-ton van is still a mystery to me. I had the same pistol with me, but never considered it to be of need. I just demonstrated they couldn't outbrake or out-accelerate me, and as I moved over toward the Cougar's passenger door they decided to practice being elsewhere...
There still ain't no "one size fits all".
As to Texas courts and precedent: Years ago, outside Austintatious, four highschool football players thought the car ahead of them was just going too slow on the two-lane, curving road. They honked and yelled and flashed their lights. The driver finally started bumper-bumping. The guy in front finally found a wide spot and pulled over and stopped.
Instead of proceeding, the footballers all got out and came toward the "old fella" and his wife. They shouted curses. He stepped out and center punched the leader with a .22 LR. That ended the party. Ambulance and coroner time.
The Grand Jury did not indict.
, Art