You guys should have asked before sending in your package. It really doesn't matter that she's in one State and you're in another, a couple filing AOS together is assumed to have one primary address that they share, which means the address the other person has is a temporary one. The second/temporary address for he other person could have been listed under the other address section.
Anyway, like I said the only thing you can do is to show up for your interview with your wife, explain how come you both have different primary address listed. Like I said before, the IO will most likely forward your case file to Idaho. AFAIK, there's nothing else you can do, calling USCIS is not going to resolve the issue, your wife will need to come down to Idaho and attend your scheduled interview with you.