Oh, and the salute thing, I've seen many times usually performed by the cop as he steps up the drivers window of a vehicle. It's common around Zhejiang. It simply a sign of respect, which makes me cringe when I watch some of the American cop reality shows and see officers treat offenders indignantly. I'm sure some offenders might "deserve" what they get, but watching how some officers treat suspects (females or elderly or even an offender who hasn't really done that much wrong), making them hit the ground in the wet, or in dirt and/or mud - WTF! Offenders get treated like animals and in such a way I'd think it would be against the American constitution, innocent until proven guilty, and being treated with humility and respect.