If the paint on your car is clearcoat/basecoat, A product like Goof-Off will work to remove latex paint and some enamels. If that doesn't work you can use lacquer thinner:
Wet a soft cloth with the thinner and working in small sections wipe the paint off. after done make sure to wash the area, polish and wax. Caution: if the paint is single stage, the lacquer thinner can cause damage. Some trim pieces even on newer cars are still finished with single stage paints. If in doubt try and very small area first. Wet sanding should be a last resort.