So, you got questioned more and finally got TN or they sent you back without issuing one?
As I said, I had TN already which I didn't give notice to the employer prior to traveling POE and making a U-Turn at the border without entering into Canada. Was going for a new TN for another opportunity. The officers kept professional and ask that I keep my current TN/Job, since its currently 'not essential'.
Nimc2002 - Not sure the point of all these questions. my initial point was unless you're in the health profession it's NOT worth taking a chance to travel.