Goo-Gone, lighter fluid, a VERY mild lacquer thinner. Whatever you use to get it off, you will need to re-wax the area. Anything strong enough to remove the tar will strip the existing wax.
Sweet try it tomorrow. I don't think it'll matter about the wax, plan on getting it painted by the end of January. I do want to get it off the chrome bumpers though.
You should use something made to dissolve tar from auto paint so you don't end up dissolving clearcoat, paint, plastic, or something else you don't want to.