There is no sin in driving a car to work. Been a bike commuter since the dawn of time, and one of my favorite commutes involved 15 mile one way trip. Working 6 days a week allowed me to rack up the miles and get fit. When I had to haul very large items, I pulled them in a trailer. I also had a car for the icy road days.
Today I have a truck that sees less than 1000 miles a year and spends most of its time hauling yard waste and other people's furniture than getting me to places. Save up for a car, and then park it. Use it when needed. Just a sensible plan, especially in snow country.