I totally agree with JT on this issue but I have not yet found a case in any state where a clamped vehicle or towed vehicle owner has gone to court over the issue. You’ve also got to be careful because as JT says it only applies to resident of the complex.
A total stranger could use your visitor parking bays all day if the parking happened to be next to a commuter railway station and you are totally powerless to stop them. It’s a crazy situation and the new NSW legislation will do nothing to address it as it stands.