We are vacationing in St. John, January 22-29. Our flight arrives in St. Thomas at 4:15. Our friends flights are arriving around 4;30. We all will be renting cars for the week. I am concerned that if we rent the cars in St. Thomas we will not have enough time to make it to the Red Hook ferry for the last trip over to St. John at 7:00. I have read that some recommend getting the car in St. John for that reason. How is the rental car check out process in St. Thomas?