Downtown SF has activity on 154.570 for the new bus terminal. And then late at night I hear some guy chatting up like it was a CB radio .... wait, it is CB, ain't it?
I've heard the cemeteries on the same freq while I was in SSF one time. I guess it wasn't a DEAD channel
I scan the other MURS freq's here in downtown, but have not heard anything. And I'm on the 10th floor, so I'd catch some decent traffic.