People tend to check in during these times:
City Center is Empty Center on Sunday
Difficult to find as there's no marquee and very little signage, but the best entry point is right on Hennepin, with the doors between Fogo de Chao and Rosa Mexicana.
Don't come here.
Park in the 60 S 6th Street public ramp in between Hennepin & Nicollet halfway down the block on the left side next to Ikes. Take the elevator down to floor 2 and skyway over to the City Center.
Get here early. It is general admission and sight lines aren't great.