Are you really, really sure? There's still three days left for you guys to change your minds; you wouldn't want to be accused of being premature.
Eisenhower had less trouble planning D-Day!
FWIW, the significant other and I will try to be there. I think they said last time that we could reserve slots until 4:00 PM, after that it's open parking. Let us know if someone is going to arrive early to reserve slots.