I think this case won't see the inside of a courtroom. It's a gross misuse of the statute in question. I'd be willing to be the prosecutor has a reason for pushing for charges.
Also this would presumably apply to any email account - adult kids, parents, brothers, sisters.
Snooping is bad for a host of reasons (but I understand necessary at times) I don't think the fear of a felony would stop anyone nor is it the best us of a courts resources.


Patience is bitter, but its fruit is sweet.
--Jean Jacques Rousseau.