here's a link of one of the threads i was talking about that test was administered same day as fingerprint appt:
http://www.immigrationportal.com/showthread.php?t=163811&page=3&pp=15
if you refer to post #37 where jzlthssw quoted lunamoped on his experience during his interview. according to lunamoped, during the interview, the officer did inquire about his test. he gave the officer the letter that was issued to him after passing the test during FP appt.
how can you contact the ASC? in my case, Glenmont ASC? on the fingerprint notice of appt, there's no phone number for the center, only the address. i tried to look it up with the address i have to no avail. i even called USCIS customer service and they told me that they don't have a number to give out to the public.