You just described driving around Boston on a GOOD DAY....
On a bad day(which is usually about once every 2 or 3 weeks or so) someone here is usually seriously injured or killed because they:
1. Drive the wrong way on a one way street.
2. Drive the wrong way on a divided highway(I was nearly killed by someone on NEW YEARS DAY doing this while I was driving to work).
3. Walk out in the middle of the street expecting traffic to stop for them,thinking the pedestrian crosswalk will apply to them-even if they're no where remotely close to a crosswalk(a.k.a. jaywalking).