No signs I could see. TBH I have no interest in taking this further as it was such a non-event it is hardly worth the effort of typing up my little anecdote. It is only the second time I have been to the shop and I am unlikely to be needing to go again. It was just the pointless, petty, jobsworth attitude of the person involved that riled me. He knew it was my bike and had 3 options; Stick his head in the door and ask me to move my bike. Wait till I came out of the shop and ask me not to lock my bike there again. Hang around until my back was turned then stick his 'official' notice to my bike, then get some back-up from another colleague and wait for my return and try to create an argument. Options 1 or 2 would be the obvious choice IMO, especially as he was waiting for me anyway, but he was desperate to go down route 3. I foiled his confrontational plan by being civil, unlocking my bike and leaving the scene. I don't know if it was a game, but I think I probably won?