I fucked up

On Thursday I was riding my way to work, through the cherry blossoms, bathed in the gorgeous overly blue, crystalline spring-time sunlight. It's stunning out there. I get to just before my office and there's roadworks going on directly outside our building, which is, unfortunately, forcing cyclists onto the footpath to get around it (against the law here in Germany). It's quiet, 8:30am or so, so I pop onto the path for the 30 meters extra before I turn into the building's courtyard, and the only person on the footpath in front of me is a tall, balding man, with his frisky Dalmation, who is, as all here with a structured German upbringing do, standing on the right side of the path to ensure a proper flow of pedestrian traffic at all times. I maneuver to overtake him by going left around him on my bike, and he fucking loses it. I turn around as I began to dismount my bike and he's already called me an "Arschloch [asshole]" while shouting in my face (but from a good two metre respectful…