Wouldn't you know it, the exact same thing happened to me a couple months ago. I was stopped at 10:15 AM outside of Kansas City by a cop who "smelled weed" although there had never been weed smoked in the car. I refused a search, and he told me 9 times out of 10 that means the person has something. That was his excuse. Seriously. I denied a search so he wanted to search me.

No surprise, an hour later when the K9 showed up there was a "hit" on the car, so they searched all my stuff (I was on a business trip driving from Omaha to Nashville, so I had a lot of stuff). Obviously they found nothing, but gave me this lecture about how they were 100% certain that I had weed in there at some point.

Oh, and I had to wait in the cop car for the K9 unit to show up, so I was shooting the shit with the cop. He showed me this grid he had on his laptop of all the other cops in the area who had people pulled over, and see why they had stopped the people. Literally all the ones he clicked on were suspected drug possession. At 10:15 AM on a Wednesday. I hate the police.