My man... YES.
I made a lengthy post about LA Noire when I completed it 2 years ago, with examples of all these little touches.
If you know Dutch, read here
http://gathering.tweakers.net/forum/list_message/38598620#38598620
Otherwise: rough, fast translation.
It contains NO spoilers about the storyline.
Btw, I played it on PC and had no performance issues. Yes, there is a 30 fps lock but I didn't find it too annoying.
Not that I'm a closet peasant. I would have liked unlocked.
Some of those little touches can right now seem ordinary. Like the tears in driveways. But I remember this kind of detail was rather new back when I played this game.