When Christy is chasing Ike, she loses her shoes and leaves them behind. However, after catching and directing Ike to the news building, Christy is seen entering the building and putting her shoes back on, though she never returned to retrieve them.
However, as the news building is across the field from where Christy tackled Ike, it is likely she retrieved her shoes on the way as she ran to the news building. She wouldn't have stopped to put her shoes back on while running in the grass, but waited until she was on solid footing just before entering the building.
