You should call the cops anyway and report it. When I was a college student, I had some yahoo follow me home on the El in Chicago. I was able to get away from him, then immediately called the cops. They picked up the guy (who had a string of rape charges, but not one of them had ever come to a conviction) and escorted him home - on the other side of Chicago. They very unofficially told me later that they had very unofficially told him that if they EVER saw him in Evanston again, they would kick his @ss. I certainly never saw the guy again, even though he saw where I lived, so I think he got the hint. If you get the right cops when you report this, they might do the same for you!
Most cities won't send out a cop to deal with that unless they don't have anything else to do or someone's been shot. Listen to the LA 911 dispatchers sometime.
Even if they dispatch immediately, it could be more than 30 minutes before they get there. Even under optimal conditions, the goblin has at least 5-8 minutes to do what he will with you.
Rape followed by murder takes all of 4 minutes.
Bump.