I really doubt Pakistan had much of a role to play in this, and Obama's statements about their help could really just be to hold off the fallout in Pakistan (i.e. the US can just storm in and kill random people in Pakistan if they wanted to). Reports show that Pakistani forces arrived on scene long after the Americans did.
Besides, this compound is a stone's throw away from the Pakistan Military Academy, the Pakistani equivalent of America's West Point. Conveniently they never bothered to wonder who lives behind the eighteen-foot-walls topped with barbed wire.