Why is it that I can sometimes extend a parking session and sometimes I can’t?

You may be unable to extend your session if you are outside the zone's hours of operation or due to a posted parking restriction.  A parking session is limited to the time limit displayed on posted signs for that zone. Motorists should check rates, parking restrictions and signage to ensure they can legally park and in order to avoid a summons.  The App works under the same Hours of Operation as the meters.