If he has outstanding moves - he cannot join any new games.
However, since you had a tail - it does not count as an outstanding move for you. Join another game.
As well, was he tailing someone else? Maybe he was waiting for that person to move? And note, if I can tail two different enemies, I will often not move till _both_ of them have moved so that they don't know which one I am tailing.
Sure it might have been bad sportsmanship on his part - but who cares. Wait 'em out
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