The parking pay station is only for paper tickets. If you took a ticket as you entered the garage, then you must pay for parking at a Parking Pay Station before returning to your car. Then use the validated ticket to leave the garage via an exit express lane. Your PASSport will not work in the exit lane if you took a paper ticket.
If you swiped your Parking PASSport in front of the reader when you entered the garage, then you must swipe your PASSport in front of the reader at the time of exit.
Please do not take a ticket after you have swiped your Parking PASSport. You must choose one method or the other.