We're about ten minutes from boarding, looking back along the Single Rider line (an RS Racers fan's best friend!) That's the Fast Pass queue to the left, with the Standby multitude offscreen on the other side of the water tower. All three queues are wheelchair accessible, and all three serenade guests with a soundtrack of the quirkiest, most wonderful old-time songs (all relating to cars) we've ever heard.
I've scanned that rock wall on the right time and time again for Hidden Mickeys. No luck.