Driving during a tornado alert

I was driving to Carl Junction, MO last night and along the way I couldn't help but keep my eyes on the skies. I swooped down the highway swerving, praying with each glance that it really wasn't a funnel cloud I saw way, way over by those back clouds. I turned off my radio - they said tornadoes sound like a train when they are close. I just knew if I could hear it in time I could bail. Where do you hide from a tornado when you are driving down the road? I've seen the movie Twister - cars, trucks and cows get tossed around. The lightning was streaking across the sky and I felt some fear and anxiety. Why was I driving during a tornado warning? By the time I arrived to my destination I felt that I was one with nature and knew a little bit more about this storm because I had a personal encounter with it while driving down that highway. I am a storm chaser.