I doubt that the driver of this vehicle is actually going to read this, however:

The driver of this gray Honda Accord apparently disagreed with my speed of 60mph on MD Route 29, to the point she felt compelled to use the right-handed merge lane to speed past me. In doing so, she nearly sideswiped me, proceeded to cut me off, sent a lovely vulgar gesture, and sped off. At the stop light ahead (and isn't is something that these manuevers don't really save any time?), I shouted - pretty impolitely - that I had my one year-old daughter in the backseat, and inquired if she was out of her mind. Her kind reply was, "whatever".

I am a physician and mother. I hope that this driver's life is not held in the same low disregard with which she seems to hold mine and my child's.

Shame on you.  

I live near 29 and it is not a fun road to drive on. I go about 60 heading norht of Burtonville and much slower south of it cause of all the traffic lights.  I am not sure where you were driving, but either north or south of Burtonvilles people go way to fast. Too bad you didn't get the license plates number.