Well, I got my car back this morning. Nothing was done to it other than the dealer putting on about 100 miles. They could not fix it because they could not duplicate the issue. So I was sent on my merry way with a....if it happens again let us know.
So now I am driving a $30k car which may or may not slip into neutral while driving on the freeway in traffic and the only way I could correct it last time was to turn the car off. Lucky for me it was on a side street when it happened.