If u enclose a photocopy of G/T scores in the supplemental materials. There's no big deal. In this busy season, I think it's better to send email to adcoms.
A suggestion from my interviewer, write a cover letter send together with all the materials you send by normal mail(not online), saying that you have already asked ETS to send your score reports but not sure whether they could arrive in time, and self-report your score to the schools first. Or as Saoke0707 suggested, enclose a copy of your score.