Is there a parking Garage near by?

Yes, there's one just around the corner at the hotel nearby.

Theres plenty of parking. Its free on the street after 6 p.m.

Yes. And make sure you bring the ticket from the garage into the show. You pay before returning to your car. Its usually $20 to $3£.

Gateway garage just around the corner

Yes. Right around the corner. I suggest using the elevators to avoid debris in the stairwells.