The answer is for the car to always drive according to the slowest speed allowed.
So, it's always 25mph in that zone. Changing it based on "school hours" is a bad idea anyways.
So, it's always 25mph in that zone. Changing it based on "school hours" is a bad idea anyways.
https://www.google.com/maps/@-37.9293496,145.0051951,3a,59y,...
https://www.google.com/maps/@-33.7710688,151.0985503,3a,75y,...
As the usual speed limit is quite a bit higher at 70km/h, driving at 40km/h (25mph) outside these times would make you, at best, a rather annoying obstacle to surrounding traffic.
Driving behind a driver not keeping up with traffic and breaking erratically is a traffic hazard (happened to me a few days ago with a human driver).
If your car can't, then the car needs to be fixed or it's "self-driving" functionality entirely disabled. Changing speed limit laws to compensate for these limitations is entirely the wrong direction.
The problem generalises - it's also unacceptable for FSD not to keep up with traffic on a freeway or randomly throw in the brakes to avoid spurious hazards for the same reasons.