Hi TorontoLove,
I traveled to Mexico (I had other things to deal with anyway)--I have heard in this forum that the transactions via the Embassy was taking three months, or so. At the PGR I was told that my transaction would take 10 days, in less than that time I got an email letting me know that the letter was ready to be picked up. The day I went to do the transaction, in the line was a lady who mentoned that she had done the transaction for her daughter who was in Canada. She had submitted copies of the finger prints, a carta poder, etc., and the transaction had taken about 10 days.
Good luck!