

I recently had the bath tub redone by a painter and they used Rust-Oleum. I am concerned they didn't do the prep work well, as the first time it dried with lots of air bubbles, spots that they'd missed leaving a matt finish rather than shine, and paint runs. They also did the work on a dreary raining day which I would've thought want appropriate but figured they new best.
Turns out they'd only done a couple of baths previously. While they came back and fixed the issues, I'm still seeing maybe 5 little spots on the bath. They're so small you could miss them, but I'm wondering if while the bath is completely dry still (hasn't been used in over two weeks now) should I get a touch up kit and do it myself to touch these up, how difficult is that - can I do just spots? Or, are pin pricks not really a problem and just part of life?
Two photos showing three spots, one the largest there is more like a scratch, and the two I'm pointing at are more typical of the size. Nothing has been in the tub since it's been done