They will get a good selling price if the promptly buy it back. Ethereum went to pennies briefly. Also, if a government agency was involved the goal may not even be to get a good price. The goal may be to disrupt and destabilise. Several million in Ethereum is nothing compared to how much central banks could lose if they can no longer print the nation's money supply. Nations destabilise other nation's currencies all the time, why wouldn't they do it to cryptos while they're still young and vulnerable?