Under normal circumstances, he might just walk away. But this ain't a normal circumstance and he's not super thrilled about the idea of walking away empty handed.

Best two out of three? Or, hey, he knows spells (mostly for summoning things, a couple binding spells), exorcisms, banishing sigils, warding (from angels and demons alike)? He's not typically one for giving up state secrets to strangers, but desperate times.