I have often anchored under similar circumstances. How fast was this guy going? I am afraid to check your answer. You were clearly acting in a responsible, seaman like manner. Boats traveling close to anchored boats should be aware of their speed and of the fact that there may be obstructions close to an anchored boat. If you had had a stern anchor would not the rode extend several feet beyond your vessel? Does a stern and bow rode need to be lit? I am not aware of any regulations about this. I am afraid to check back to see the answer. In America, it is always somebody else''s fault.