So I guess Cam is just going to get away with it, then?

Pretty obviously some sort of "deal" was made here. The NCAA has never ever ever acted this fast. Think about how long it took them to rule on Georgia's move to reinstate A.J. Green.
My thoughts are that the NCAA felt the need to do something instead of having a cloud hang over the SEC Championship game and the bowl season so they told Auburn they would rule Cam ineligible and reinstate him before the end of the week.

I know someone in another thread said this was standard operating procedure for the NCAA, but I don't think it is. I have never seen them act this way (although I certainly could be wrong.