I've been lucky with these situations. Then again I live in the bay area where most drivers have learned to tolerate cyclists going up hills, exit lanes, etc. Twice now in so many days a vehicle have been stuck behind me on a onramp exit. Twice the driver waited until I crested the ramp before passing safely to the left. I've seen all the posts regarding cycling in NYC. I applaud you guys for putting up with all those hot headed drivers around you.