Sad to say, Ronjon, I had that problem more times than I can count, and it almost always involves a large TnT running group. In exactly the same area that DScott described.
I have noticed also that most of them stay on the service road through Playa, but a lot of them do take up the bike path as well. I have never known who to talk about that, either. It's especially bad in the months leading up to the L.A. Marathon.
