If that's a palette in the bay against the wall, that might get you off!
A quick check on street view shows they care very little about where they leave their rubbish.
To use another football analogy... you could have been killed.
Is that a Tops Tiles in the background? Go into the store and ask? I heard someone get a parking ticket dealt with in McDonalds in Shoreham once. If it's private property it could be as simple as the manager of the store calling and having a word?