It's a bit of a drag...

...driving into London. I was stuck on the A40 when I saw this and I must say that having Live View on the 40D was really useful in this instance because I only had a few seconds to compose the shot before we got moving again.
Anyway, looking down a viewfinder hanging out of the driver's window may have distracted me (and other drivers!) more than just glancing at the screen, pressing the focus button, lining it up and pressing the shutter. Simple! The strip lights made the camera underexpose a tadge but I didn't have time to fiddle.