Photo taken by me.
Time: Today 02/05/2014 15:30-17:30 (Hong Kong Time)
Location: Causeway Bay, Hong Kong
Under the Canal Road Flyover (堅拿道天橋),that place is called Ngo Keng Kiu (鵝頸橋: Bridge of goose's neck) by locals.
This place is famous for Da Siu Yan (打小人: villain hitting)
I have walked around there around 15:30-17:30.
No teams spotted. No stickers used on u-turn board.
Only a dozen of staff members came. They set the board, talked with villain hitter (maybe the task is related to Da Siu Yan).
A cameraman filmed and took pictures for a while. That's all.
All of them have left the place, driven away around 17:30 and they've retrieved the board (with no stickers on it).
My guess, they were rehersing and filming the introductroy videos (possibily). But I can't see Phil