Daren, You don't need to ask for a ban. We get it that you're doing damage control. It's not that big of a deal. Some folks here have received temporary bans for far worse offenses than you and they were accepted back just fine. It's just a time out.
If you really feel that strongly about it then just don't post to TF anymore, but it's really not necessary. Besides...who cares if some members don't like you. You have plenty of friends here who do so...no worries. Live and learn and enjoy the plants man!