Hopefully something similar is implemented in the other states soon/first, as a whole, rather than having the attorney generals implement more local policies...Just doesn't work well.
Recently had a decent discussion with the boss about this, basic idea was: "Don't do anything stupid, and if you do, you will be warned and asked to remove such items." This was obviously in regards to social networking. However, emails, if coming from a work domain and address, are obviously exclusively owned by the workplace, and should be under scrutiny.
Honestly, I think it's a pretty clear cut situation. If you don't like a workplaces policies, don't work there. Also make sure you actually read the policies, be informed and whatnot.