I just had my car protected for the winter/detailed by an Autopian down here in the Williamsburg area (got_leather). The car looks great, and I want to keep it looking as good as possible through the winter. Problem is that I go home to the Boston area during December (I go to school down here in Williamsburg, home is in the Boston area). Due to the nature of New England winters, washing by hand is not a viable option. Automatic car washes seem to be bad too, so what is my best option to get salt and stuff off of the car during this time?