Not that I had any real fear he would try something, mind you, and I did have a couple backup options ready to go in case he tried to enter the house.
Apparently he lives in the housing complex across the street and has a mental disorder. They said they would tell him to keep off my property. For all the good that will do with a person in such a state.
For the now the situation is resolved but I'm sure we'll end up crossing paths again at some point. I in fact can hear him right now as I'm typing this, yelling incomprehensibly in the distance, even over my headphones.
Make sure you take the necessary precautions to defend yourself in these trying times. As the wait times for security to arrive are unacceptable.