Be Royal, Kansas City Mystery Cache

In honor of the 2014 Kansas City Royals making the playoffs for the first time in 29 years, here's a fun geocache to commemorate this feat.  The cache is not at the posted coordinates.  Instead, solve this puzzle and you're on your way to a fun find.
 

You can validate your puzzle solution with certitude.

Permission was obtained to place this cache. Parking during events must be in accordance with event policy, and will incur a fee. Parking during non event times can be done within 100 meters of the final destination.

Now that the 2015 season has come, this puzzle is a bit more difficult to solve. You'll have to do some additional research and use some geosmarts to get the solution.