Why would he consent to a search, knowing that he was "dirty"? And what caused the cop to ask permission to search the vehicle?
Searching one’s vehicle is standard police procedure anytime a police officer has an interaction between said officer and vehicle occupant. No matter what the interaction is. In other words, they know you are dirty and are looking for something to hang you.
“Why would he consent to a search, knowing that he was “dirty”? “
One wonders. He was a passenger in his car. Guessing that he didn’t know.