there is nothing called interim AP. Go to the local INS office with 120 dollars, 2 INS specified photographs, I 140 and I 485 motices, H1 papers, passport copy with visa pages and all documents to show that you really have a family emergency.
If you can show all the proper docments to support that you really really need to go to India rightnow, you will get the AP in 1 day.
hope this helps.