Hairy, How do you think she'll react, if at all, to such a statement? I do think you need to call her on her BS from last night. She knows darned well that she did not meet the spirit of the MC's instructions. I think you need to roll that out in detail at the next MC session. Probably shouldn't mention it any more until then, because she'll probably just use any thing you say to prepare the defense she is undoubtably formulating in her mind.
Trust me, the checked out state is no fun to be in either, but on the other hand it may force some movement too. Several of us here have hit it in varying degrees (I called it dontgivashititis) and are bouncing back. Being distant emotionally might get her to realize that there really is a problem, but you can't fake it. Trust me when I say it is not a particularly pleasant state to be in either. On the otherhand, it may take that drastic a thing to get her moving.