White Heath Elementary School issued the following announcement on Nov. 17.
Due to wet, muddy, and snowy conditions behind the visitors bleachers as well as the large crowds expected on Saturday, fans and students should NOT bring footballs or other "play" items into the facility.
Fans and students who bring footballs or other "play" items will be directed to return the items to their vehicles. Thank you for your attention and cooperation in this matter.
Original source can be found here.
Source: White Heath Elementary School