When Mulder and Scully leave the church they find that three steel piles were detached from the church's fence near the entrance just at the sidewalk. It makes no sense for Juliet to remove those piles right at the entrance and moreover to remove three piles just beside each other. This way everybody can easily spot the missing piles just by walking at the sidewalk next to the church and while removing them she must be extra cautious not to get spotted.