Ideally by 3:30-3:45pm to account for traffic. Beer, wine, and water will be available before the ceremony. The shuttles from the Omni are also open to guests who are not staying at the hotel.
There is plenty of parking available at the venue and attendants will be able to direct you when you arrive. Cars cannot be left overnight.
Yes. There are three motor coaches leaving the Omni at 3:00pm. The first vehicle to return to the Omni will leave the venue at 8:30pm, and the last two will leave between 9:45pm and 10:00pm.