I got out of a DUI by putting my keys in the trunk and sleeping in the back seat.
same thing, a cop woke me up, asked what I was doing. I said I'm too drunk to drive and I had no other way home (this was in rural Ohio. No cabs where I was) and my buddy I went to the bar with hooked up with some chick and took off. SO I was sleeping it off and would leave in the morning.
Cop asked me where my keys were, I told him in the trunk, I popped the trunk, showed him, and he said go back to sleep.
He also explained that if my keys were in hands reach, not just in the ignition, I would have been arrested. Ive just heard that story so many times, I knew to put the keys in the trunk.