Especially since they chose not to build parking facilities for Levi Stadium, and use existing local business parking lots on Sundays when they are closed.
The result is a massive backup after every game as the attendees all leave at once through side streets. A planned parking structure would have included fast-track access to the freeways instead of dumping everyone onto surface streets around the stadium, then having to deal with random traffic light patterns that are set for usual weekend activity.
-PJ
It's the same at Cowboys' Stadium. I went to the Florida-Michigan game there, and there were places charging $200 to park, fortunately I found one business parking lot and paid $40. Never again!