Well, I for one am another example to prove you wrong. I was ARRESTED for possible DWI when pulled over for speeding. I blew 0.0 at the facility test. I passed the field sobriety test perfectly. The Trooper was being an absolut jerk to me and took everything I had to keep my mouth shut. I offered to take his field handheld test and that pissed him off that I was being 'pushy' so he cuffed me and brought me in.
No charges filed, released within 30 min. But, I now had a car in impound and stuck at midnight in a town an hour from home.
He knew what he was doing. He was inconveniencing me and pushing his weight around to prove his authority.