What took about four weeks to build... took about four hours to take down.
As a last step, we painted the floor black again.
On the topic of floors, it's nice to report that the builder's idea of putting down tar paper to protect the stage floor from our super-sticky tiles worked beautifully! And the extra scraps of tar paper put down under our rain effect areas clearly protected the stage floor itself from water damage. (Earlier post on that HERE.)