Your narrative still makes it seem not unreasonable for the cop to be happy. After all, arresting a drunk driver before they manage to kill someone is the kind

Your narrative still makes it seem not unreasonable for the cop to be happy. After all, arresting a drunk driver before they manage to kill someone is the kind of goal that should motivate cops to get out of bed in the morning. I'd personally rather have them excited to take an intoxicated driver off the street than letting them go because the paper work is a hassle.