If you define road rage as hooting and flipping someone off for driving like a po3s, then yeah..
Only once have I ever got out of my car with the intention of giving someone a PK was when a taxi clipped my side mirror when he was trying to be an arsehole and get through a gap in traffic that wasn't big enough for him... I think he got the worlds biggest skirk and somehow managed to disappear very quickly when I got out the car. This was probably around 15 years ago and definitely not something I'd do anymore though.
Yeah these days you could get bliksemmed and moered for your trouble or even shot. Not worth it.