Voltron's take: It's silly for congress to pass a budget and not fund it properly. Congress were the ones that gave the executive branch the authority to issue platinum legal tender coins. Clearly it violates the spirit of the law and it's silly to argue about the law with the people who make the laws, but in this case it's just a way to break the filibuster gridlock in the Senate. If the Senate can't get enough votes to raise the debt ceiling, it probably won't get enough votes to repeal the coin law. Obama should do it.
It also brings to light the absurdity of our fiat money system.