The Car Follows Me

A car that I did not see at all before turns on and pulls out of a field entrance off the road and starts to follow me. At first I thought I was just focused on the man in the ditch and didn't see a road and that's where they came from. After inspecting the rest of my truck we find a small pipe dropped in the bed of my truck surrounded by snow. It was about two inches wide and eighteen inches long wrapped in duct tape. It was mine. No phone number for it but now that I can't help but think what would have happened if I walked outside. But after tonight I realize anyone could be targeted with this type of sub.