I was filming a short with a few friends last night. It was just a silly zombie film for a class and we had 5 people in full zombie makeup, blood, pale face and everything else. It was about 10 at night and we were filming near a truck stop next to a freeway and suddenly a guy drove past and one of the zombie guys lunged for the car as it went past and the other zombies started chasing the director which made the car speed away. Oh I forgot to mention that we had a bunch of fake limbs lying on the road, and some fake blood covering our zombies. A few minutes later 2 cop cars drove up and we had to explain what we were doing.
Worse part is our main actor was wearing a huge trenchcoat and all he did was stand at a distance and stare at the cops with a creepy grin on his face as they were talking to us. It was okay though, all the cops said was that we needed to get a filming permit and that if we filmed here much longer they would have to escort us away from the area. After that they drove off and naturally the director ignored the cop's advice and kept filming. After a while I was standing guard to make sure no cars came down the road we were filming on when I saw another cop. I yelled to the guys that we had to go and they threw the equipment in the cars we brought and drove off before the cop could catch us. Good times indeed.