I don't know what you are talking about. The C-4 and C3 lots are ALWAYS pretty empty. Always.
All the Director level donors get 2 passes, one is a reserved spot in C-1 or C-2 and I think the other one, at least in a lot of cases is in the C-3/4 or D1/2 area. I'm guessing a lot of those second passes don't get used much so that might be why those are pretty empty all the time. I have a feeling the crowd is going to pretty small tomorrow and I bet there aren't too many people that end up parking further away than normal.