Tomy, how did you remove the bumper brace (the one that goes INTO the car) to paint that as well as the bumper plate?? Is it easy, hard, mind numbingly difficult??
Just mask off the screens and paint the posts in place. Use one of those larger disposable drop cloths and just cut some holes at the post locations and tape in place. If you go through all of the work to remove the posts you have kind of defeated the purpose of ease of installation.
Tape off the screen area real good. Lightly sand the posts and use a good pre paint solvent to remove any wax. I used a Krylon semi Flat paint on theposts which matches the screens pretty good. Do not worry about putting tape on the posts. Let the spray go naturally along the post and it will hide the silver part of the post past the end of the screens.