Don't count on using the shopping centre carpark.
Garden City shopping centre is right beside the busway to the city. Most of their carparks are locked off until 9am, and the ones that are open for shopping have security guards to prevent commuter parking.
Can't blame them - shopping centre carparks are privately owned, and are designed on the basis of 7 cars occupying each space each day - one commuter therefore prevents 7 shoppers.
Marg