Using AGPL code doesn't mean you agree to the terms. It means if you don't agree to and obey the terms, you don't have a license, which is copyright infringement.
Being taken to court for infringement of free software's copyright is rare. On top of that the copied code only being a snippet from copilot makes it even less likely to happen. The snippet alone may not be considered copyrightable.
So you either agree to the license terms or you are breaking the law.
If your company violates copyright law, it can be taken to court and sued for damages or forced compliance to the license terms:
https://www.mend.io/resources/blog/the-100-million-case-for-...
https://www.natlawreview.com/article/gpl-open-source-litigat...
https://wiki.fsfe.org/Migrated/GPL%20Enforcement%20Cases