Chrysler 2008 300 - Manual (Page 410)

If you must use the accessories (wipers, defrosters, etc.)
while being towed, the key must be in the ON position,
not the ACC position. Make certain the transmission
remains in “N” (Neutral).
TOWING THIS VEHICLE BEHIND ANOTHER
VEHICLE WITH A TOW DOLLY
The manufacture does not recommend that you tow this
vehicle on a tow dolly. Vehicle damage may occur.
410 WHAT TO DO IN EMERGENCIES