So vehicle went to an amazing mechanic today. Before addressing the stall complaint he looked over the entire vehicle, found out I had oil in the coolant. Explained what a 90 day drive train warranty should cover and encouraged me to get dealer to do this repair as the priority (warranty expires in a few days) then bring car back. Head gasket? The first part is good news because the mechanic did not charge for this first visit!:p
The got in touch with the dealer and so far no hassles, except that dealer is two states away and there is no loaner vehicle to get me back- but hopefully amtrack to the rescue. So I'll lurk while the vehicle is abed in the repair shop and keep you posted as we carry on.