That's nothing. Those Gap commercials only got annoying after repeat viewing. Some of them were actually good, and they did a great job of establishing a visual identity.
No, the 2000 gold medal for advertising annoyance goes to "Superclub Vidéotron", a chain of video stores in Québec. Their commercial had a couple of store clerks talking about how they had tons of copies of each movie, and how that annoyed the competition. That statement got repeated about six times by means of a video tape loop. Yes, they just repeated the same piece of video six times in a row. Pure annoyance on first viewing.
They took the insult further by later airing another commercial that seemed at first to acknowledge how annoying the first one was, only to use the same video loop technique again.
Everybody noticed those commercials and everybody hated them, as far as I know.