A 700-car parking garage with an 7' 8" clearance is available at the Convention Center. The entrance is located on 10th Street.
You may also visit ParkPGH.org for real time parking availability in the downtown area.
Halls D & E are located on the first floor, in the West Lobby across from the parking garage on 10th street. The admissions desk is marked "info" on the map, where you will come to purchase a ticket or collect one you procured first online.