You can pay $27 for interior cleaning and detailing, or you can use the free vacuums they have after you go through the carwash.
This place is an automated Carwash. You pay a machine and go through. When you exit there are Vacuum Cleaners that you can use to Vacuum the interior of your car yourself.
It is a lot easier than pulling out a vacuum into your driveway and vacuuming your car out.
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