About sticking the hand out, and about the stupid chauffeur.
Why was that a one shot thing? Okay, she was too busy pouring paint, but when he stopped in traffic in the city, she could have continued to stick her hand out so others who are also stopped can see, like the stupid Chauffeur.
BTW, how stupid was the Chauffeur? I'm thinking dude needs to *beep* or get off the can. If you think something's fishy, would you keep staring at people weirdly to let them know that you know something's fishy? I would pretend everything is fine and play it off. I would drive to safe area and call 911 where the person cannot see me.
Anyway, there would be no horror movies for us to enjoy without stupid characters. I like to break them down and analyze their stupidity, but I also understand they are a necessity in movies like this. I like this movie, it was entertaining.