1st time, WI officer (was a close friend of our family) he said this is your one & only get out of jail free card from me. He gave me (us) a ride home. Left my truck at the gas station parking lot. I was plowed and should not of been driving. I was very thankful he cut me some slack. My two friends that were with me, Jamie & Todd, each had a DUI from this officer. They were both in shock he gave me a break.
2nd time, years later in CO, got pulled over after I'd had a few after work, I failed the road side test, officer did not have a breathalyzer with him, he took me downtown, there was a pile of people at the station (county fair weekend) time it was my turn to blow in the machine, I blew just under the legal limit. A few officers had a powwow about my numbers, sergeant stepped in and said we can't charge him for what his numbers might have been, only for what they are now, cut him loose. I was set free.