Artichoke.
.... most of the Mog owners that I know carry a towel in the car!
Good luck
And a microfibre cloth to wipe condensation off the side windows!!
Worryingly Aldermog is, other than the small gap at the lower front of the side screen, waterproof driving into rain: a truck going past on a very wet road is a bigger challenge... Another reason to avoid Motorways!