LOL, I was born and raised in NY and spent a decade lin South Florida, so it was very odd for us when we first moved here. The strangest was the little wave people give each other on the back dirt and small out of the way roads when they drive past eachother. When we first got here it used to really freak me out. We would drive by someone and they would give a little wave and I would be all freaked out asking my husband "do we know them" or "have we met them yet" "why the hell are they waving at us".
I have to say however that after 12 years of being here I wouldn't trade it for anything. My mom has been in two pretty big accidents. The first was in NY and the only people who stopped to help were the police and the EMT's. It was not on a big highway, it was a rural road.
The second was here, she was run off the road by a drunk driver on Rt 2, her SUV flipped
three times. We were in our car ahead of her and saw it int he rare view. We Of course pulled over. It didn't take long for 1 car to stop and help, then another, and another. By the time the police, ambulance and hellicopter arrived (my grandfather needed to airlifted) there were at least 10 or more different cars of people that pulled over to help. And as you know out here, that was pretty much everyone who drove by. One person actually ran the driver down to get the guys lisence plate number (probably the only car that didn't stop) It turns out they didn't need to as his car was wrapped around a guard rail about 10 or so miles down the road.
In the other places I lived hundreds of cars could drive by without stopping, out here, every car that drives by stops to help if they can.