using clay bar to remove overspray - what about on tires?

[onosqv]

Hey guys, I've done the searching, and it seems I would want to use a clay bar to remove overspray on the rims. What am I suppose to use for those little crevices in the rim where a claybar may not fit? However, I'm wondering if it is okay to use it on the sidewall of the tires. I'm guessing the paint on the tread will go away w/ a few miles of driving.

As for the rim, if I will be repainting (haven't decided yet) myself, would I even need to clay bar? or just wet sand and go at it?

THANKS!