The car I love is turning into a nightmare. The alarm that goes off if the convertible top is not securely up or down is driving me crazy. It is on any time the wheels are rolling. Dealership wants to start by replacing the release valve. They can't be sure that other things won't need to be replaced after that. Does that sound like a money pit? My car has been at the dealership for a month. At first they said it was a headliner now it's the release valve. I need a difinative answer.