I have always been anal about cleaning/washing/waxing so I am pretty good at keeping the car clean/wax.
370 as a secondary car and we were renovating the living room with spackle and sanding, I was dirty so I did not drive the car the whole week. Now even I washed it, there's a very thin layer (you can't see it) of sandy feeling when I run my finger across the paint surface. I have to rub my finger kinda hard a few times then it would come off and feel very smooth again.
What should I use to get this layer of crap of? Turtle Wax Compound Polishing?

I am kind of ticked off
Thanks,