They are rock chips. Properly primed and properly cured, paint s/b resiliant. I live in western Canada and with tight civic and provincial budgets we have traded graders for gravel to combat winter ice. However, I am anal when it comes to protecting the vehicle from this kind of damage and the car looks like crap in 15,000 miles. I too have an older Honda that has stood up quite well to the years on the road; it still has the original windsheild and paint.
I am coming to the conclusion that this is my issue, not Acura's and that the next time my wife tells me that I really want a black car, I will tell her what she really needs to hear!
Sounds like the end of the tread to me.
Snag