Yes, the agreement was formally approved by the Brea City Council at their October 6, 2020 meeting. The link in the comment from
@capitanmikey that you were replying to is to the relevant agenda package for the Tesla agreement from that meeting. The minutes of the meeting aren't available on Brea's site, but they do have a link to the video of the meeting and you can watch the relevant part of that
here if you want. The Tesla agreement was approved as part of the consent calendar, so it's not explicitly discussed or mentioned on its own.