the police car was most likely doing a patrol. it's what police cars & officers do. doubt they are looking specifically for folks violating quarantine orders. likely they are patrolling ...keeping an eye on the neighborhood for crime...or responding to a report of one or a similar complaint.

part of the issue of this virus and the craziness is to keep a clear perspective on the matter. we have not gotten to the point as a nation, where our law enforcement personnel are being sent to hunt down those who are violating orders of social distancing. but that has not stopped the paranoia from setting in.