The wiser move would have been replicating what the Philadelphia Eagles built into the Linc years ago: a drunk tank for fans who were over served. To add a little Catholic flavor, they could add an adjoining confessional with a priest for those ready to repent.
I haven't been to campus in recent years, but my advice is bring a couple ponchos.
On Friday afternoon there is parking at the Bookstore and Stadium/Joyce lots. Bookstore fills up but there are always people leaving to open up spots. I’ve always been able to find spots at Stadium/Joyce. There are probably other places but I think that’s where most public parking is on Fridays. Saturday is a completely different story.
Honestly, he wasn't too bad about it. He kind of yelled quickly and "rude" but in hindsight, I know it was because he got excited himself, and knew that he needed me to get down quickly for his granddaughter to see. I think he just acted "quickly".
If you can stay up/there until midnight I believe Drummers Circle should be experienced at least once by a fan. Happens at the steps of the Golden Dome. Get there early, it gets packed.
Along with Shields and the stadium, I would just walk around campus and soak it all in. Especially if your daughter is at all interested in going to ND. The Grotto, the lakes, the Dome (go inside too it's an amazing building). Check out the library too, and the new student center alongside the stadium. And South Quad will be bumpin'. Etc. etc.