Principal Rooney should've be so lucky: Ferris Bueller’s parade has officially been rained on. Tomorrow's fourth annual Deitch Project’s Art Parade — which, this year, would've attempted to re-create Ferris Bueller’s Von Steuben Day Parade (in the movie, Matthew Broderick, in a leopard-print waistcoat, sang "Danke Schoen" to an adoring crowd of thousands) — has been canceled owing to tomorrow's expected tropical storm. City rules prevent Deitch Projects from obtaining another permit until spring 2009, and this will leave 900-plus artists and their audacious floats with nowhere to go, though we hear there will be a party (indoors, we hope) for the participants. Project Bueller is currently seeking advice on how it might infiltrate Macy's Thanksgiving Day Parade.