This happened in spite of the fact that, according to a piece in Bloomberg, the loans weren't meant to be handed out until authorities were clear on the manufacturers' plans for reorganization. In fact, federal officials hadn't finished establishing the concessions made by all the involved parties, the pension liabilities, nor the long-term soundness of the automakers' financial positions. On top of that, apparently it didn't keep close tabs on the money after loaning it: the report says that $1B CAD should have been applied to GM Canada pension plans but was instead given to GM to use.
Chrysler repaid $1.7 billion, while GM handed back $3.8 billion and Bloomberg believes the feds in Ottawa still own 110 million shares of The General, which, at the stock price as of writing, would be good for another $3.9 billion. Those were mad, bad days, though, and we're not sure what point the report serves, other than to say, "Oh, by the way...."