If you paid attention, you would remember he set that up, the CIA program he had Lucius look into. DUH.
NO DUH! Still, if he were a fraction of a second off with his timing, he'd be FUCKED. What if it took longer to capture the guy? What if his thugs put up a tougher fight?
even to that point, he actually does stand there for a few moments before being whisked away.
he shot off a flare which was tied to a balloon which signaled the plane to come and get them. it was very very believable and it was actually done. That isn't CGI. In fact Bale wanted to do that stunt himself but obviously they told him hell no. But that shot of Batman on top of the Sears tower in Chicago is really Bale not a stuntman. and he really is on the building. No camera tricks