I live in a frozen wasteland, and need to clean mah car. I can use the drive-thru's (and normally do in the winter), but how do I clean the rest of the car? I can clean the interior in the garage if I use a heater, but how do I clean the engine? I fear getting water into a bad place and having it freeze. Do I just go to a car wash and use the soft spray? I've got so much winter sand and salt under the hood and I need it to go away. Help!