Used to have a guy here that would toy with the city cops on the possession of fireworks inside city limits ordinance; he ran a fireworks stand just outside of town, and also had a huge farm. He'd wait until the cops were watching for people buying fireworks and heading back into town, then call up his buddies to come get some discount produce. Cops see a car drive up, and people loading 4-6 big paper sacks into the car, then it heads into the city limits. They pull it over and find absolutely nothing but vegetables.
He did have one of his friends come out in a marked sheriff's department car, but the locals didn't have the guts to pull it over.