Hi norfolk01
Inorder to get AP on emergency basis you need to have concrete prove that there is real serious crisis or tragedy in your home ( for instance a real blood relative sick or died.....)
In my case my mother went through a serious surgery I asked my father to have me faxed all medical reports and related papers. I took all of them to INS with INFO PASS appointment and appeared before the INS officer.
The officer on a duty did a couple of "cross questioning" and asked me to come again the next morning with a current hospital note that my mother is still staying in hospital. I showed up in wee hours the next day and just had to wait another one hour to get my AP.
noted that AP is only for ppl waiting for AOS, I took my all NOAs like I-485,1-30,1-765,passport,I-94,previous I-20s and letter of explanation,even itinerary....
good luck