If you are unable to add additional time to your parking stay, it is likely that:
- You have reached the maximum parking time allowed for that space.
- You do not have to pay as no payment is required (check posted signs for hours of operation).
- You have parked in a restricted space (check posted signs for special restrictions like parking during rush hour).
- You are only allowed to enter one transaction per zone. There is currently a two hour lockout per zone, once a session has started.