I interviewed the same day as you!
🙂 I was the one with the longest hair.
😉
If I remember correctly, the interviewer said that the adcom meets once a month, toward the end of the month. He seemed to think that we would receive a letter telling us the tier we were placed in shortly after the meeting, and that the first batch of true acceptances would probably go out some time in late November. However, it's possible that even with an AWPA ranking, some people might not receive a full acceptance until one of the later batches (there were 3 total), if ever. Since we interviewed early, it's probably a decent sign that they liked us, and some state schools don't weight the interviews that heavily. (I'm not sure how much the interviews factor in at SIU, though.) But they're really careful not to overaccept, so it could be a painful wait!
🙁
Good luck, and I hope you get great news soon!