Oh No You Don't

These signs appeared on Edinburgh pavements. I wonder if they're "official" or not?

I only saw them because I walked to work for a change instead of cycling.

Later on it was beers after work and a late journey home... to find my new lens had arrived. Very short & wide, so lots of landscape and panorama stuff to look forward to :)

EDIT: I notice that a year ago I took another picture of another Edinburgh pavement!