Hmm, was this at around 8.30am this morning?
I ride that route (and could possibly be described as a young singlespeeder riding at a fair clip), and have a vague recollection of passing a rider and some walkers with dogs this morning. In my defence, I ride at "a fair clip" where appropriate, and slow considerably for people, particularly with dogs.
Did I pass you just before the tunnel, having sat behind you for a second until you noticed me, and I sneaked by on the right once past the muddy puddles?
If it was me, I recall slowing considerably (to the point of literally trackstanding) for the dopey old ladies who were taking up the entire path with their two small pooches. I thanked them as I passed, although to be honest, their efforts to allow me past didn't really deserve thanks! (Does anyone else do that? Thank people, when you were the one more inconvenienced?! I guess it is like passing people on one way roads in the car or on the bike, when you thank the person for thanking you!)
I did pass another female cyclist down there too this morning, although she was riding rather sedately (and very politely thanked me for giving her a "passing on your right") so I don't suppose she ragged past these grumpy pooch owners either. Clearly they were just having a bad morning.
Anyway, if you are referring to me - not guilty. Not all riders that "ride at a fair clip" are selfish inconsiderate riders. ;)