74 in a 60? Give me a freaking break.
Well that's why he got pulled over, then they found the weed. Either he was a dumbass for leaving it in plain view, or he was a dumbass for giving them permission to search his vehicle, which he doesn't have to do. Without probable cause, they can't go in without his permission.
I would never give permission myself, not that I'm hiding anything, but they can tear the thing apart and you're stuck putting everything back together, a massive waste of time for everyone.