It was just announced on the news after tonight's convention that Mrs. Palin will be sent home to get her things in order and see her son off.
She will be flown home with many books to read on the plane and while she's home. She has to learn all of Senator McCain's positions so she can speak to them correctly, and they want to educate her on all the issues both domestic and foreign so that she will know what's going on and can speak to that.
The commentator called it the 'education of Sara Palin'....They will bring her back to campaign sometime in the middle to the end of next week.
This I think would explain why she is not taking/allowed any interviews at this time.
Edit:
Here are two links about this. One is from a reporter that was at the convention....
http://marcambinder.theatlantic.com/arch…
This is another that confirms his post:
http://www.motherjones.com/kevin-drum/20…
Interesting response to the request for interviews.....