I left the house at 9:00 to get a load of wood from a tree that I have been working on for a while. I returned around 11:30 and noticed tire tracks going back on my land. I had a pile of scrap metal that was mostly gone at the end of my wood pile. We have been having a problem with this in my area for awhile now and all my neighbors are hot over this. This is mostly small farms and we are not used to this type of behavior. I have posted signs everywhere and they had to drive across my levy and way back into my woods. Only one way in an out. I found a tight spot and installed the spike strips. They fit into the larger square tubing so all I have to do is remove them when I go through. BTW, I did tell the police about it and they said it would be very unlikely they would be driving their cars around in my woods.