Releasing Paper Mache from a mold

Well, I'm working on a new partial and this time, I decided to work with FastMache. I finish the plaster mold last night and I put the paper mache in the mold, but I made a teensy mistake - I forgot to add a mold release before I put in the paper mache! Is there anyway to save my mask, or do I have to break the mask and start over again?

(I'm such a derp. >.<; )