I live in Savannah, Ga, which finds itself in the projected path of Hurricane Irma. Looks like I'm going have to evacuate for the 2nd time in a year. Unfortunately, I'm going to have to leave my '15 Volt behind while the minivan gets evacuation duty. There's a good chance we'll get flooding in my area, so my question is, what should I do to prepare the Volt to give it the best chance of survival? I'm thinking I should disconnect the 12 volt battery, and pull the main disconnect for the traction battery. Is there anything detrimental in doing this? I'll probably put it up on jackstands, too. Anything else I should do?