I rented from Thrifty Car Rental at the Miami Airport.It was inexpensive and the car was adequate. Unfortunately no one at the counter could tell me how to get back to the airport without going through a toll. So I thought I would try. Unfortunately I couldn't do it and I was fined (Administrative fee) by Thrifty $60. So I thought that they would understand what happened and refund my penalty and keep the tolls. Unfortunately they said it was all my fault. They are not responsible to give a tourist directions. Maybe they aren't but it sure would have helped...and a little cheaper.