Augmenting the streets

I spotted this old bit of door mat taped to a lamppost while walking to Kingston University.

I was so curious, it stopped me in my tracks. Was it some new from of texturised textile graffiti? An underground club flyer that my old untrendy age is incapable of deciphering? Really tame vandalism?

Taking a step back to see it in context and I realised it was a car bump protector. Whoever parks in that drive must have learned the hard way that the lamppost is dangerously close.

I wonder how well it works and if anyone else has used a similar technique.