Point Inheritance
I have seen (in estates I have handled) MR points transferred from deceased husband to surviving wife. As I recall, it took a few calls to CS (with general questions, no specifics) before I was able to locate someone who knew what to do. I believe they required a death certificate and some sort of indication that the points were going to the right person. In this case, there was a similar situation -- wife needed to fly back from Europe to wrap up affairs, and there were sufficient points to help her get back and forth a couple of times.
I'm not sure whether parent-child transfer will work, but it sure sounds like you should try calling CS. YMMV, of course.