Parking costs doubled in the Power & Light District last night for Nickelback

Snapped this photo on my walk home from work yesterday.

It’s from a parking lot across the street from the AMC Mainstreet Theatre in the Power & Light District. People were actually forking over $20 to park in the lot last night, and the “special event” was Nickelback at the Sprint Center. How much does it usually cost to park in the lot? $10.