I'm having a hard time completely understanding the situation, but since you're a seasoned cyclist, I trust your instincts and you should trust your own. If the situation is that bad, I'd phone city hall and start hollering. I'd also phone any cycling organization that might listen. Whoever striped those lanes probably did it from a Land Rover....

As I'm getting older and remarking that I'm still alive, I'm not hesitant to get off my bike and do a little sidewalk if the street looks dicey. If there's no foot traffic I might even stay on my bike a bit...