HOLLA ON THE GO: Yelling and approaching 90lb dog walker

My mother has been walking her 4 month old puppy down Chapel street for a couple of weeks now. She always picks up after him and is always mindful of making him walk on the road.

Today a man around his early 20s(possibly around 18 or 19) came out of his house berating her and saying how she shouldn’t let her dog walk in the road. Calling the dog, whistling to attempt to invoke reaction yelling things like “I’ll walk your dog for you” coming up from out of his house closer to her. My mother turned around and went back home. I’ve given her pepper spray to carry around the neighborhood for my own peace of mind.