Mw2 question about VAC ban.

Hi guys I was hacking on Mw2 earlier on the steam version. Thing is I almost always go on FourDeltaOne instead so im not that bothered but this is just a question. When I join a game now, it says 'Cheat Detected' and I get kicked. Then if I try to join a game again and I get into the same game as the last one, it says 'You are temporarily banned from this server'. So, my question is, will I get unbanned? It says that its temporary, but I doubt that it actually is.

Oh btw, if you will got VAC ban, there is a way to play again, just download FourDeltaOne