Place limit orders? If that works to keep shares out of the hands of shorters, then this is a case for us all to apply my favorite motto "don't just do it, over do it".
Get out there and put in short-sell orders at $15, maybe 1 million shares - each of us. There will be no shares to borrow and short after those orders are executed.
Our only financial risk is that the shares go to something over $15 overnight.