Zombie thread I know but still relevant. The answer in Illinois is YES they'll ticket for DUI on a bicycle. They'll also nail you if operating a riding mower while intoxicated or if you're just sitting in your car with the keys accessible. A guy in Coal Valley, IL. got nailed in his own garage several years ago. He had been putting a stereo in his car and had a few beers, fell asleep in the driver's seat listening to the new stereo with the key in the ignition. Cop drove by and saw him leaned back in the driver's seat, came back a little later and he hadn't moved so cop did a "wellness" check. Open container on the seat and alcohol on his breath, cop gave him a breathalyzer test which he failed. Cop gave him a DUI, open container ticket AND had his car towed out of his own garage! He tried to fight it, he got the container ticket dropped but not the DUI and had to pay for the tow even though the car had never left the garage all night until the cop had it towed. A coworker had a cop follow him the 3 blocks from the bar to his house and nail him for DUI and had his car towed out of his garage. In Illinois it's less about public safety and more about the money.
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