Two messages appeared on Ochocinco's Twitter page during the prohibited period for players to use social media, which begins 90 minutes before kickoff and lasts until post-game media obligations are fulfilled. One Ochocinco message appeared at 6:50 p.m. ET Friday and the second at 9:53 p.m. ET. The game kicked off at 8:07 p.m. ET.
NFL executive vice president of football operations Ray Anderson issued the fine, and Ochocinco apologized -- how else? -- through Twitter.
"I won't do it again," he tweeted.
The Associated Press contributed to this report.