I think everyone has had a snake escape at one point or another. It's possible that it could prevent her from eating but there is only one way to find out. Just make sure you secure the cage asap.

Before I realized that large pythons can open sliding glass doors, I had a Burmese Python escape and climb up the wall and knock one of my guitars off the wall and break a light fixture. Both of which were about 7ft above the floor. He was fine. I would say that your snake is probably ok.