Yes you can rent a car there even if not flying in or out. There's like 5 rental car companies in there.
yes, we recommend a reservation however. Your choices are Avis, Alamo, Budget, Enterprise, National, Thrifty.
You are, as long as you're using a credit card. Some airport locations won't allow debit card transactions, without a return flight itinerary. Call your rental agency for clarification.
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