Call the non-emergency number today. Do it. If for no other reason that to empower yourself that you can do something about this. I once witnessed an incident and didn't call until the next day. The officer was extremely happy that I called because there had been previous reports about the person (I knew the address). Please do it for yourself, it will only take a few minutes, and do it for others. This guy needs to be documented. Your boyfriend is wrong to dismiss it now.