How much for the rental for 4 days
The rental car agencies within the airport closed at midnight unless you call ahead to inform them that your flight will be delayed and you have a reservation. if you do not call ahead to inform them they will not be able to have anybody stay behind.
They are not 24hrs, but if you have a reservation they should wait for your plane's arrival. It's always best to confurm before you fly, if you have a late arrival.
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