I can testify to that!!!!
It is no joke that most guys that get busted with narcotics are doing something else. Like shooting their gun in the air, fighting with their wife in the street, arguing with their neighbor over a TV set that was borrowed last year and not returned. Or any other scenario you can think of.
In this case, the rig probably looked like a P0S, and the cops saw it for what it was, a trailer going down the road with no tail lights OR something. They discovered a nervous driver that did not match the vehicle he/she was driving, they ran a criminal history (positive) asked for consent to search, subject gave consent, (cops did not need consent anyway because dog hit, giving officers probable cause to search,) consent is always better. Officer discovered 750 LBS of MJ. I dont think there was any profiiing there. LOL. Especially since the Border PAtrol is covered up processing children, the drug smugglers are going to be busy for a while getting that stuff up north.
----Just Saying (retired LEO)