PD's received the resident scores and an answer key a little over a week ago.
However, an annotated answer key complete with explanations/answer justifications for all questions should be posted on the ACR site soon. (Most likely, it will appear under the "Learning Center" tab.) In fact, IMHO, it should be posted already.
For what it's worth, if it doesn't appear in the next week or so, I shall be making some inquiries.