You have three options there. All three involve being a total bitch:
I know. I had the pleasure of hearing her criticize my driving skills all the way back :D
1) Stop the car, make her get off and walk back home;
2) Stop the car, get off, get to the passenger side, open the door, push her to the steering wheel and let her drive (and begin cricizing her driving skills);
3) Continue driving, open the passgenger door, throw her out, drive away with a maddly mad grin on your face.
I trust my advice will be of great assistance in future ocassions.
I forgot what I was about to post.
It’s Monday (again) already =(