I'm not sure how old this little easter egg is on Google Maps (Street View), but I found it today (11th January, 2011) when @cdevroe retweeted @thinkgeek's tweet:

1. Go here in Google Maps: http://j.mp/vzysqr 2. Click on the lady. 3. YOU JERK!
( Link to tweet)

Enjoy!

Music:
"Kick In The Ass" by Moxy Früvous
Licensed under Creative Commons

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UPDATE (12 Jan, 2012, at 0200 EST): Google Maps has since blurred the images of this woman. What a shame!