Chain Reaction of DUI Arrests

Police arrested a woman in Readington Township, New Jersey for drunk driving. They took her back to the police station. She called a friend to come pick her up.
When that friend arrived, police discovered that she was drunk, too. She had driven to the station, so they arrested and cited her.
Now the two ladies summoned a third friend to pick them up from jail. When he arrived at the station, police noticed that he, too, was drunk and had driven to the station. So they arrested and cited him.
Eventually, a sober friend drove to the police station and took all three drunks home.