I would pay the going price to get supplies. The cost is higher to get supplies to a disaster area. Some areas may need a helicopter to deliver supplies since the road are closed.
Yes, but that's not the point. Large profits should be encouraged. There should be a huge financial incentive to load up a panel van in, say, Ohio, with all the things a hurricane victim might want to buy, and drive it down to the disaster area. Lots of people would be doing that right now, if they could charge the highest price people were willing to pay. Instead, their profit margins are limited to about what they would make if they sold the stuff in Ohio, so why go to the trouble? They're allowed to recoup their costs, but not allowed to make good money. That's not enough incentive to rush necessities to the area.