Plenty of validated parking is available in the structure for the Orange County Performing Arts Center.
From Bristol Street, turn onto Town Center Drive. Turn left on Park Center Drive and turn right into the first parking structure. There is overhead signage in the parking lot directing you to the 650 building.
To access the building, walk from Level 2 of the parking garage and use the covered walkway (pictured in green below) to access the Center Tower. Use the elevators on your left to access the 6th floor.