If that doesn't work, another option may be to link the video to the publisher of the song and provide the city/department name. I am not a lawyer, but hopefully one will chime in that is an expert on media content laws. Some publishers take public broadcasting of their works very seriously. Public broadcasting in this case is not just Youtube, but also the police officer playing for the audience in a public setting. Restaurant and bar owners are familiar with this. They are only allowed to play content for their customers that has been licensed to them and license does not mean a personal spotify account. There are fines for non-compliance. [1] This is not the same as blasting music in your car in case anyone draws the comparison. The officer is playing the music for their audience / customers with the intent of it being on Youtube. In my opinion it should be easy to prove intent in this case.

[1] - https://pos.toasttab.com/blog/on-the-line/a-crash-course-in-...