What happened when the lift crashed right through the roof?

The elevator speeds upwards and bursts through the ceiling of the factory, then soars over the city. They see the other four children returning home from the factory; Augustus is skinny from being squeezed through the pipe, Violet's skin is still blue, Veruca and her parents are covered in garbage, and Mike is extremely tall and stretched out. The trucks are all lined up, too, to bring each child their lifetime supply of chocolate.