Parking for Twilight Epiphany at sunrise?

Planning on using one of my upcoming days off work to see the sunrise portion of Twilight Epiphany. Looked up info about parking on the Rice campus and it seems straightforward enough, but couldn’t find any mention of when parking areas open in the morning. Sunrise is around 7:00, but the artwork starts about an hour beforehand at 6:00 so I’d obviously be getting there earlier. Anyone know whether this will be a problem, or should I just try to park somewhere off-campus?