Pretty much every University states that if something important is missing, they'll get in touch. When it comes to GRE and TOEFL scores or transcripts, I don't think having or not having received official copies would make or break your application. From what I've seen, most likely they will consider you application just like any other, and either before or contextually to their offer, they will want to see official materials, in order to double check that what you declared is legit. In other words, I wouldn't worry too much.
And BTW that's what happened to me with UCSD: they didn't receive my scores, so they contacted me and told me that if I were to be selected, I would have to resend the scores in.