If, as I said, if the cop just walks up and demands you step out and says it's because they "smell weed," it's probably a bull--- stop. They've already made a determination of guilt and will try to get you to dance Swan Lake so they can say you failed a field sobriety check.
It will be interesting to find out if they have any dashcam video.
I used to work with a guy that talked just like you. He had 3 DUIs, but it was always crooked cops’ fault.