REALLY NEED YOUR URGENT RESPONSE

I have a situation same as verypoorme's. My mom is in critical condition in hospital, and I was advised to send AP application to Chicago after meeting a local USCIS officer because our local office does not process the emergency AP same as you posted before. Could you please tell me how long did you get the approval notice after you sent your application? My I-140 is approved and I-485 is pending. Thank you!