According to Pirates.com: Due to the concurrent events and limited parking, all parking in lots and garages on the North Shore will be closed to "cash" parkers for the Pirates game. All fans who do not have a pre-sold hang tag for the August 30 Pirates game will not be permitted to enter the North Shore. Beginning at 2 p.m., the City of Pittsburgh Police Department will permit entry to the North Shore only to fans displaying pre-sold parking passes. Those fans without a pre-sold parking pass are asked to use one of the many parking alternatives downtown, starting as low as $5.
Pitt game is at noon, Pirates at 4pm.. so, if you're planning on seeing the Bucs at PNC Park, plan on NOT parking on the North Shore..