As it happens, I’m in the UK only a few miles from where this was posted on the door of a Manchester Subway:
(For an ironic corrective, see this compendium.)
The more pervasive rioting has been in London, including a major tear-up of the main street in Hackney, Mare Street, which was about a mile from Homerton, which where I lived when I first moved to London.
The Internet suggests there are signs of returning normalcy. Commentators on the #Manchester hashtag, for example, say much of the damage, including broken glass, has already been replaced.