My first apartment (when I was 21), was an LBYM special and not in the best of neighborhoods, to put it mildly. I was so proud of it, and in 1969 my $75/month was really a stretch for me but for the first time I didn't have a roommate.
Anyway, one morning 21+ police cars came screeching up, blocking off the street and parking all over the place, and cops came pouring out... a bunch of them ran around to the back stairs to prevent anyone from escaping that way, while the rest charged up the front stairs on the outside of the building.
I sat in my apartment on the first floor, watching through my window under the stairs and wondering how I could ever get to class on time since I didn't want to get in the middle of anything.
Anyway, as fast as they came, they left with their tails between their legs. I found out from the druggies living upstairs, that when they asked the police for a warrant, nobody could produce one! So, they just had to go home. All 21+ cars full of them.
Don't ask me why they sent so many, but they did.
I was late for class but had no idea how to explain it to the instructor. This was less believable than "the dog ate my homework".