Finding a parking place for your car while you are off on your bicycle tour is a major part of planning a bicycle tour. Each of my tours has had its own answer.
Some of the places I have used in the past are:
1. Ferry Terminals - bicycle and ferries make great partners
2. Air Port Parking [...]
Read the complete post at http://ebent.wordpress.com/2008/02/25/finding-a-parking-place-for-your-car-while-bicycle-touring/