I am not familiar with the male, but I had a young black female at my door on Greenshire Drive at approx 8 PM that acted suspicious. My dog kept her at bay. She told me eventually something about "Unity Church" and yelled through the door after I closed it on her.
The very next day I saw her walking on Green Valley then into Greenshire chain smoking cigarettes at noon. She yelled out to me and I ignored her and went inside the house.
It bothered me enough that I'm going to purchase a storm door tomorrow morning.