Get an aerosol of the right paint from halfords, spray some into the lid and wait for it to thicken ever so slightly, then use a cocktail stick to place single drops into each chip. It wont look perfect, but looks heaps better than white spots everywhere. Polishing your car with any kind of polish that dries to a white powder leaves residue in all imperfections, making them more obvious, so using something like Colour Magic polish will help too.