Where is the cashier? I'm not leaving until later, but I didn't see where one would be

Thank you both so much! Have a great day!

The cashier is available from 7 AM to 8 PM. If they are away from the booth during that time, they are taking a quick break.

The cashier is on the twelfth street side of the parking structure. If you entered from 11th street drive clockwise and you will see them on the left after you pass the elevator.