From 2011: “Yemen: People stand on a destroyed billboard during the funerals of protesters killed by security forces loyal to President Ali Abdullah Saleh.”
From last year: Billboard in Boston destroyed by Hurricane Sandy.
From June this year: After a tornado, near Oklahoma City.
From 2009: A destroyed Natty Boh Utz Girl billboard, in Baltimore.
From 2011: In North Carolina after a tornado blew through.
Shot by Zach Frailey.
Cut and removed billboard in Bristol, England, which is kind of the unofficial worldwide home of vandalized billboards.
Two examples here, scroll down, numbers 5 and 6.
From 2006: Even when it’s done intentionally, it’s eye-catching.
Smart billboard by Denver Water.