BigRed,
Depending on the finish, wash it and wait 60 before you wax a repainted car. If there is still some crud on the finish as evidenced by the paint feeling anything but baby butt smooth, try using a clay bar. It will remove all surface imperfections. Follow up with any good quality carnuba wax. My preference is anything from Griot's Garage (
www.griotsgarage.com). Good luck.