200 Stanley Ave. in GPS will take you to the main entrance of the school not shown at the top of the map. If you switch to Satellite view, the PAC is the portion of the building at the bottom of the screen and the main entrance would be on the left and the loading dock is on the right.
If you use the What3Words App
Main Entrance D4 - ///enormously.contoured.blinking
Stage Dock Door C36 - ///expel.resolve.printer
Door C35 rear entrance - ///engravings.famed.loss