Yom Kippur starts at sundown Friday and continues until the following sundown or longer. I'm sure that will impact the size of the crowd.
It's interesting to note that the first Rutgers home game played on a Sunday was September 21, 1980 vs. Cincinnati. The game was originally scheduled on that holiday. A week or two before the game, students lobbied Rutgers and Rutgers asked Cincinnati if they would move the game to Sunday. And they did. Rutgers won that contest 24-7.
The last home game to be postponed before this, for religious reasons, was Princeton vs. Rutgers. It was suppose to be on November 1, 1882 but was switched to November 12th for "...having been set apart by the Synod of the Reformed Church for fasting and prayer.” November 1 is All Saints Day.