You said most of what I experienced as a student. Tailgating was minimal and dispersed. The atmosphere was great for PSU, ND and WVU. For Temple, Rutgers, and Kent State, there wasn't any. At all.
The good news was, students could get there easily. The bad news was, students could leave easily -- and often did.
The biggest difference between the experience at Pitt and places like Penn State or Notre Dame is that fans weren't making a weekend of it at Pitt. Most drove in, attended the game, and drove home. At Penn State, people show up on Friday and don't leave until Sunday, and the tailgate culture builds around all that time you spend before and after the game. If you're traveling to that venue, you clear your schedule and spend your weekend there. No taking kids to a Saturday morning soccer game, doing yard work, or going to family functions.