One of the biggest cultural things I struggled to get used to when I moved out to the Bay Area for work (originally from the northeast too), was the extent to which I needed to constantly self-censor and water down my wording to the point of meaninglessness, simply to avoid offending someone or coming across as too harsh. People out here have such thin skin, and you're always walking on eggshells when you need to disagree with something. It's a kind of newspeak, where it colors every interaction with people and makes it impossible to deliver certain messages effectively, without sugar-coating or couching with "probablys" and "maybes". When you take this culture and these rules and assume the entire world plays by them, you're likely to end up looking totally out of touch.
EDIT: Self-censored a little. :-)