They are funny about that; they don't want their Escrows to fail.
They are paying for Realtors, and they want the Buyer's represented.
Yes, you will have to wait;
Interesting; you said you were "too late", but you said it hasn't gone to Auction;
Don't you realize that the Auction, (Trustee Sale) is the last step in the foreclosure:
Was it LISTED as a Shortsale?
Was there a Listing Agent?
If so, have your Realtor contact the Listing Agent and see if you can still make an Offer.