Another vote for the sidewalk.
Riding on the sidewalk would reduce the risk of being clipped by a car, and also reduce the likelihood of annoying other commuters. Staying on the roadway takes you ambiguously across a right exit, and the roadway seems to have drainage grates and rough pavement.
My solution would be to take the sidewalk and cross the exit on foot if necessary, a few feet along it where it seems to lose its curbs.
YMMV.