Shadow Ghost Picture

Ashlynn of Victoria, Australia sent in this ghost picture of a shadow. What intrigues us is that the shadow stops at the sidewalk and does not line up with the shadow of the pole. Was it a ghost? You decide:

"My brother and I were taking time-lapse shots of traffic, for his photography assignment. We set up the tripod, and did a trial shot, to see if the picture would be bright enough. When we looked at it, this is what came up. We decided to go to a different spot."