In Minnesota, I've had companies twice drag me into court trying to enforce a non-compete and the judge laughed at both companies and I was sent on my way.
The key in both cases was the company I had left was trying to keep me from working in the same field for a competitor. My attorney argued that if I'm "gainfully employable" you can't restrict me from earning a living in my chosen field - to do so would invite economic hardship.
The judge asked if they would rather compensate me for two years at my current salary (which was a six figure salary), or let me go work for their competitor. The company quickly chose the latter.