What’s going on in that school that the public isn’t allowed to know about? This kind of secrecy and barring of parents suggests she’s up to something with the kids.
The kuds can still walk home. They just get dismissed after the kids are picked up in cars.
When everyone was dismissed at the same time, parents were parking in the neighborhood and then walking to get the juds. This was causing traffic problems, and was probably dangerous for the walkers.
Now, the car pick up line goes first and the walkers go after them.