Police managed to make two drunk-driving arrests by pulling over a single car, reports the Iowa City Press-Citizen. Here's the trick: Cops say Jennifer Volesky was driving erratically on a local highway when she apparently realized she was unfit to drive and pulled into the parking lot of a Dairy Queen, reports the Gazette. At that point, she switched places with passenger Heather Heaton, the problem being that Heaton was drunk, too, say police. All of this was spotted by a concerned motorist who called 911, leading police to pull over Heaton and make both arrests. Cops say a third woman in the car also was drunk, but luckily she didn't try to drive, or the trio might have matched the feat of these three guys in Australia.