Has anyone hired a cab from the airport to an area car rental agency? We could save $150 by renting from another Budget location instead of Budget at PHX. They offer free shuttle but not to an airport where there is a Budget facility. You have to get your own transportation. The other rental facility is less than 4 miles away from the airport. Our pick up/drop off times would fall within their hours. I wonder about cab fees. There are four of us. Any thoughts? Just trying to save some money!