As thoroughly discussed in Discources in Place by Scollon & Wong-Scollon, the placement of a sign is essentially always a crucial part of the sign's interpretation. Sometimes it helps me to remember this when I see a sign completely out of place.
In this particular case, we have a "two way traffic" sign on the edge of a forest. Viewed from the path running next to it, the positioning of the sign almost in the correct orientation did give me a bit of pause to think about exactly which part of the forest should be considered two-way. Especially as there was no clear path starting near where the sign was standing.
Most likely a result of a random act of minor vandalism, or a thoughtful commentary on geosemiotics?