Get your taxes done using TurboTax

So I followed all the instructions now provided in this post and have no doubt that it resolved my problem. However, I foolishly had followed the TurboTax Expert's advice and caved and filedd by mail already. I figured it was better not to wait until the last minute if it had to be done. So now I suppose I have to wait forever for my refund. Correct? It is not okay to efile once the return went in the mail?