These type of things can't be done without local police help. But, the usual problem tend to be who in the local police working for secret service. As usual compartmentalized story and hard to know any body for any certainty.Local cops respond to the acting SS director who today, on Capitol Hill, blamed them for not having Crooks in their sights from the 2nd-floor window:
As this blame game continues, things go out of control and at one point local police will say 'Heck with SS' and spill the beans. As of now, it is all politically correct professional indirect blame games which hints local police knows what happened, but don't want to spill the beans.