To be fair, if there wasn't a party going down in the coach, nothing would have probably happened, other than a probable fine. When it smells like a Willie Nelson party, the trooper had enough reason to search.
Trooper Michael Loftis stopped a Prevost motor coach bus on I-40 near the 275 mile marker for failure to display a U.S. Department of Transportation and International Fuel Tax Association sticker on the vehicle.