if its OEM paint its baked, thus wax it right when u get her home, if its been repainted i would wait a few weeks as the paint will cure for soem time (at least thats what my dad said who happends tgo be a ChE and works w/ automotive paints )
hehe...its a nice thing to have around, when i want custom paint i just take a sample to his work use the eye and match it hehe...