Has anybody noticed that at the end of this episode ( Which I just watched) , that Waylon said things went back to normal, which could drive a Wooden  person crazy. A wooden person....? I've never heard of this expression! Have you guys?

I've never noticed the phrase before, but I've found a few references online.

From urbandictionary.com:

A midwestern colloquialism meaning that you could even drive a person who had no manner of sensory perception up the wall because you are beyond all natural levels of irritating.

From lifeblogcarpediem.wordpress.com:

Across the years, I’ve occasionally used an expression that is a fair assessment for someone who has the propensity to go on and on when you were actually done with the conversation fifteen minutes earlier. I describe it as: “She could drive a wooden man crazy.”

From city-data.com:

My Granny said, "I swan" which resembled "I declare!" She also said about something annoying, "That would drive a wooden man crazy." I use that one myself.

Ya learn something every day. And here I thought he was talking about Woody Harrelson.