I've found the best thing for removing any kind of pine sap from your vehicles is WD-40. Just spray it on, let sit about 5 minutes, and then wipe off. We used to have a cabin in the pines and that's the easiest way we found to remove the sap.
I used dry gas to remove sap from my car and it works well. I soaked a paper towel and gently rubbed it on. I let it soak in for about 1 minute and rubbed it off. Then I rinsed the area with water where the dry gas was used.