Buggy Part Locations Bugged?

[Madman]

I had the same with Monroe. Drove by one spot hundreds times, and finally found 10th part. Strange thing is, that was a wheel. Easy to see. And it was literally 1m from the road. I am sure it wasn't there when I was driving near that place earlier. That makes me think that it was invisible. And become visible after few days. Like my PC didn't loaded texture or something.
Thats my speculation. Maybe Im just blind, but I don't think so