Often, people use their vehicles as vehicles of communication! I spotted this message on a tire cover on a vehicle in a parking lot the other day.
(Also, apologies for the photo quality; I need to learn how to use the camera on my new smart phone!)
I thought this was an appropriate license plate for a professional photographer.
Recently, I visited Glenwood Springs, Colorado, where I saw some signs.
I did. And it was. (The restaurant is called Slope and Hatch.)
Bicyclist, you shall dismount! (Or you shall not pass!)