I was saying that there is a particular method recommended in the how to fix your ratio section that is exactly what you have done, assuming I am interpreting your situation correctly. Obviously, recommended practice is not disallowed and will not get you banned.
Unless you mean you downloaded it off the public tracker, which isn't recommended practice and may or may not be listed in that section, but is still allowed. Otherwise, downloading off the public tracker wouldn't be allowed (duh...) and we would be a fully private tracker instead of semi-private.
Bottom line, it doesn't matter where you get your files. Stat-hacking isn't having zero or abnormally low download, it's having a ridiculous upload. Besides, who's to know you didn't download the torrent during the freeleech period?