If she's hungry, and she smells a rat, she'll probably come out on her own. If she doesn't, I definitely wouldn't go taking her hide away or forcing her to come out.
You're gonna need to experiment a bit to see what works with your snakes. I have some who practically jump out of the tub when they smell food, and I have a couple who won't eat unless it's middle of the night with no around. Try different things and see what works.