I just noticed most of those are just for 1-2 hours before and after event. If it were me, I would park at Circle Centre Mall in the World of Wonders garage at Illinois and Maryland (underneath Palomino & Ruth's Chris). It says if you spend $20 anywhere in the mall, you can get regular rates (bar tab at Palomino would probably work).
Circle Centre Mall Parking
Circle Centre mall in downtown Indianapolis has three parking garages. You can access them on Washington Street, Maryland Street, Georgia Street, and Illinois Street. The garages accept major credit cards. Here are the garage rates for days when there is no major event downtown:
0 - 3 hours $2.00
3 - 4 hours $5.00
4 - 5 hours $10.00
5 - 6 hours $14.00
6 -12 hours $17.00
12 - 24 hours $22.00
During Colts game days or big downtown events, the garage may charge a $20 event rate. Drivers will be notified by signage at the garage entry and can get normal parking rates by showing a $20 receipt from any Circle Centre merchant.
The only Circle Centre merchant that provides parking validation is the United Artists Theater on the fourth floor, which offers four hours of complimentary parking to moviegoers.
Note for night-owls: The Sun Garage (entrances on Washington and Maryland streets) closes at 2 a.m. Monday through Saturday and midnight on Sunday, but the World of Wonders garage (entrances off Illinois and Maryland streets) is open 24 hours.
Circle Centre Mall Parking | Indianapolis Parking Guide
Enter at red arrow for the WoW garage: