OP- I'm glad you're relatively unscathed.
Having been there myself, it sucks! Here's a section of road which is a known issue if you're a local. What do you do? Take your lumps in a this is part of 2 wheeling philosophy, or feel the victim of negligence and litigate? Best case, you still take your lumps but receive monetary compensation for it.
Didn't I also read recently about a rider going down on powdered glass after line painting?
Opinions are like internet connections- everybody has one.