Not sure how to deal with this.
Friend is lovely but, in all honesty is quite snobby! I was with her yesterday (and some others) and there were a few comments along the lines of -
'I don't want to go there, it's a horrible part of town'
Refusing to send her daughter to preschool somewhere with 'chavvy' parents
Stating quite matter-of-factly that smoking was 'so lower class' (this one was with a touch of irony in fairness.)
Would you say something to her or just let her get on with it?