Lots of good info given, thanks for that. I will soon be returning the car and in talking with the concierge here at the hotel in Geneva he called up the rental car agency on the French side and asked about getting a taxi there. He was told they do this all the time and could call a taxi for me to save a trip back to the terminal. A french taxi then.

I asked about cost and if there is any supplement added for going from there to Geneva(staying down by the lake). I also wondered if possibly I'm charged for the return of the driver to France since they can't pick up a fare in Switzerland. The concierge wasn't really sure. Any ideas what to expect?