So here's the thing, right. You are correct. And I agree.

I'll admit something; I forgot where the service files were (I don't use systemd often). So, in my unix wisdom I used `find` to find the files ending with 'service'. The only ones that came up were in /usr/lib

You're right, I'd typically never edit files in /usr. But I wasn't sure how else to do it at the time.