Sunday is part of processional weekend. I am trying to find my schedule from last year, but I have misplaced it. Anyway, I think on Sunday it was open until 12:00. After the processional is over people clear out and the park is very nice.
Monday and Tuesday should be CM party days. Great days IMO. DLP will close at 6:00 with 5:45 fireworks and snow. CAP will stay open until at least 9:00, maybe more with the WOC show this year.