@banang I received the originals on the day of interview. The next day after interview, I got email from US Embassy asking for copies of our docs - they gave us the photocopies of the originals too... not sure why we got this email.
The CEAC Status Tracker shows 'READY' status (it has been like that since I was DQ'd), however, the website indicates last updated was today.
I did pay for the DX delivery before interview, and no tracker or update on the AIS website.