This is why...

This is one of many reason I am opposed to using photo enforcement of traffic laws.

http://www.washingtonpost.com/wp-dyn/content/article/2008/08/16/AR2008081601895.html

My friend Brett had a similar ticket mailed to him by DDOT in 2001 when DC's photo speed enforcement program started. The camera clocked him at 113 MPH on Wisconsin Ave NW near Tenleytown.