I worked on Facebook copyright claims etc for two years, which uses the same systems as the reports and support cases at FB. I can't say it's the case for OPs

I worked on Facebook copyright claims etc for two years, which uses the same systems as the reports and support cases at FB. I can't say it's the case for OPs case specifically, but I absolutely saw code that automatically closed tickets in a specific queue after a random(15-75) minutes to avoid being consistent with the close time so it wouldn't look too suspicious or automated to users.