Guerilla Art!?

One day I came upon this home-made street sign close to my house. It made me smile and I thought that whoever posted it was maybe having a party or something. After a while I noticed it was still there and apparently not going anywhere. Upon further inspection, I decided that my favorite place (?) was the "Confused Way" pointing in both directions. Then, the other day I noticed a mailbox on a 10-12' post across the street from the sign marked "Airmail". Funny stuff! Whoever is publicly posting these is either a guerrilla artist or just has a great and creative sense of humor! I hope that they continue to surprise me. Maybe I'll leave them a thank you note in their Airmail mailbox if I can get up there.