The one time I saw a spin on the Freeway was while I was out for a drivers training lesson with my mom. A teenager or early 20's was driving some sort of sporty car, and twitched a little to one side. overcorrected, Overcorrected, OVERCORRECTED, spun! Ended up wrong-way on left shoulder, after smacking the center divider.

Glad to hear no one was hurt, and let's hear it for proper following distances!