No I don't think Bitcoin will save the USPS. I don't even understand how it would. USPS has been encroaching into other areas of business, besides actually delivering mail. Apparently high finance is their next foray.
The real question is
should they be saved?
Do you really think the Fed will let an 'independent' government agency take something besides their debt notes?
What baffles me is the two and three cent raises. Just raise it a dime, to at least cover your expenses.
Ah, government and their infinite wisdom.