In this case, it probably was skunk. But an anecdote for you: I lived in SF, waiting for the bus. It’s at the light, about to turn left and then pick us up at the corner. As it’s idling, I smell weed. Ok, not too weird, it’s SF. Light turns, bus starts to accelerate through the turn and holy Christ, the weed smell is stronger! Then the doors open and the entire bus smelled like that stinky green bud. Amazing. I’m still convinced that I pretty much always had a partial contact high while living there