Did he run her driver’s license when he was writing her a warning?
I would assume so...SOP and all....and so if he suspected her of being drunk or high...why even write a warning at all?
That's where the defender of LEO logic falls apart...why didnt he just return to the car and place her under arrest if he supected her of being under the influence?
Why take the time to even write a warning for failure to signal?
Why wait until she refused to put out a cig to order her out of the car?