Explain what happened with Stacy's plan? Did it go as expected?

Stacey makes Little Man, Christopher-John, and Cassie promise to meet him in the school toolshed at lunch. They take buckets and shovels and return to the spot where they were forced off the road. There, they dig a ditch across the area that fills with gully water and makes it look as if the road washed out from the rain.

After school, they rush back to the spot that they had worked on. As a result of hard rain during the afternoon, their "yard-wide ditch" has become a "twelve foot lake." They hide in the forest bank and watch as the Jefferson Davis schoobus approaches. Thinking that it is a puddle, the driver drives the bus straight into the hole, breaking the axle and waterlogging the engine. The white kids fall in the muddy ditch on their way out of the bus and must walk home in the rain. The bus driver tells them it will probably be two weeks before the bus can be towed and fixed.

No, it did not go as expected.