How does using exclusively Keigo come across in a workplace?

I have a coworker that I have kind of hit my limit with. And of course, me being a petty bitch, I want to be as passive aggressive as possible going forward. Given that I don’t have any real malicious compliance I can do, I only have the Keigo card to play. Would that be too aggressive, or not noticeable enough to really matter?

Note: I typically speak です／ます with even my bosses at most