I will be traveling to Des Moines, IA for business on 3/12 and 3/13. I will be staying downtown, but there aren't really any good charging options. There is a public library a few miles away but the librarian noted that they have been having problems with the chargers that only work intermittently. There is a charger at a convenience store about 4 miles from the hotel but I would rather not leave my Model S in the parking lot there overnight. Local RV parks are generally closed for the winter at this time. Does anyone know where I can get a good 220V charge overnight in Des Moines? Also, the trip is 320 miles each way, so I'll be going through the Quad cities and will need to find a place to charge as well. Does anyone know a good place or an RV park that will be open at that time? If possible I would like to get a 14-50 outlet and would need it for about 4 hours on the way to Des Moines and 4 hours on the way back. Any advice would be greatly appreciated. Please feel free to send me a personal message. Thanks!