I have a multi-city dedicated completely separate from traffic bike path that would take up 90% of my bicycle commute distance but I still drive to work because

I have a multi-city dedicated completely separate from traffic bike path that would take up 90% of my bicycle commute distance but I still drive to work because the last 2 miles to get into the office involves mingling with high speed traffic, broken glass, trash, illegally parked cars and my favorite: "SHARE THE ROAD" signs.