When Halo sees the proverbial swarm of police that were floating about the scene, he's actually surprised that when he looks over, only one of the police cars have already disappeared and instead two SWAT trucks were in the area along with an ambulance. Apparently as much as his calls had gone through, he can now hear the results of one of them squawking from a police that seems to be just writing down the entire scenario on a pocket pad, he had a camera around his neck.
That was just about the time that a pair of EMTs started racing towards the door that the police, in Halo's absence, had removed fully.
And then the sound of sirens as a second Ambulance pulled up.