Food is going to a problem I think. And not just the price of it. We have record low stockpiles of grain since statistics have been kept. The American farmer is in no mood to limit exports in order that we do not go hungry. As you say, it could get ugly.
You’re free to buy as much grain as you like and then you could sell it or give it to whom ever you wanted. Of course, you would lose you ass if you did it on a large scale, much like farmers who sell their crop for other than the best available price.