As allready said NEVER open the door for cop's , even if they see you & demand you allow them in get up & lock all the doors & shut the blinds right in front of them , they aint there to bring good news & your opening the door allows them a brief glance into your home as well as a quick sniff , now they have probable cause to enter or investigate. Somethings fishy about the cop's story for comming to your door , cop's dont canvass the neighborhood looking for info on anything less than murder & they sure as hell aint gonna put effort into a trespassing complaint , more likely is the neighbor who supposedly had tresspassers dropped a dime because of smell & the cop was doing a knock n talk , police are taught the art of disinformation to answer questions from the public/suspects .
Just cause you didnt get raided dont mean shit & there are no mj smoker friendly cop's , your either a criminal ( Cash flow to the system ) or a suspected criminal who warrants further investigation , all cop's are lying assholes who'd shit on your entire life if they think they can charge you with something warranting heavy fines or property seizure , that cop wasnt there investigating a neighbors complaint unless you live in smallville .