In all seriousness, the stage door for Promises is on the side of the Broadway Theater. You walk out, make a left, and then another left, and you'll see a huge crowd for Chenoweth.
La Cage is right out front, next to the entrance. You walk out of the main entrance, and walk towards the right. You'll see it. There's a lot of people, usually. I'm pretty sure when I went I was 152, and the person that came after me was turned away
Race i don't know about.
Hope it helps!