Depends on how much Ray actually feeds Mom, assuming he's the snitch.

From that scene, he's only feeding her scant words. The whole time we're assuming that there is an established snitch, and that they're also actively informing Mom. In reality, neither of that may be true.

Mother might not know who the snitch is, if at all, and this may be Ray's first contact with her (now that he has an opportunity to frame someone else).

He might be doing it for insurance in case things go down hill, in which case he'd go "Mom, don't sell me off. I was your snitch", but if things do look well planned right before the escape, he could feed her bogus information to make the escape even more successful.

Fence sitter Ray.