Drove on a freshly painted yellow center line. " not marked" now I have yellow paint on the lower part of my car. What is the best way to remove this crap and what do I use that will not hurt my paint?

Try some paint cleaning clay. I know from experience that highway striping paint is a bear to remove. When I had the misfortune to get some highway striping paint on one of our cars I hadn't used paint cleaning yet so I'm unsure how effective it will be, but from my recent experience with it that's the first thing that I'd try. Use some Meguiar's Quick Detailer as the lubricant ... the bottle has a fine sprayer that mists the surface very effectively.

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Fred Hoelzle