That is a scary situation. Many years ago I pulled off on the big two-lane offramp from I-15 going South onto I-215 Westbound. Just as we started down we saw an old man in a big older American car backing up the offramp as fast as he could go. Seemed like he was doing 40 or so, and we were doing 60 straight at each other. I guess he took the wrong offramp . . .