Sparky,
I sent you a pm to see if it a guy that I have delt with many times in the past. I run into a lot of guys that are fishing salmon and steelhead on really light tackle. I don't mind stopping and letting them fish through. If them move out of the spot, they loose it. I also hate when they hook a fish and it is 200 yds. downstream and they do not go with it. It really stops your fishing for a long time. I would have done the same thing you did. The guy does not own the trib he was fishing on so once he left, the spot was anyones for the taking.