I mentioned this same subject back in May where I was considering mounting a sign on the full back-rest of my semi-recumbent that would read: PASS IN LEFT LANE ONLY. I figured with drivers trying to approximate 3 feet might make no difference with the distance they currently pass me at. In the thread I started, the topic concerned an innovative program that allows camera/video-phones to be linked to a web-site where images or video segments are sent to the website every 5 seconds. A sign advising 'This Bike Equipped with Streaming Surveillance'

Lately, I've thought of applying a professional-looking sticker onto the frame stating 'This vehicle protected by wireless location tracking device' and give it an official-sounding fictional name to deter thieves. Of course, they might look around for where a transmitter might be installed and wouldn't find one, but it would likely discourage potential thieves anyway.