It’s been over fifty years since I went to a ND game at USC. In those days, you drove around the poor neighborhoods around the coliseum looking for paid parking on front yards. It always felt safe as the income from having ten or more cars parked on ones yard was a huge benefit, and literally every house was doing this. After the game, the streets were jam packed with fans walking back to their cars.
My nephew went to a ND game at USC a couple years ago, and thought the parking lots on campus were the best and safest areas to park. Still a good ten minute walk to and from, but safe and crowded with lots of fans.