Tracking bill.. Wheres george??

I recently found this one dollar bill that had the wheresgeorge markings. It's seems to me that they are using the dollar bill as a form of advertising. What i'm wondering is it a government agency or just a company looking for a way to market their product. I, as well as probably many others probably have thought of using money as a way of marketing their products. The only thing is that I thought it was illegal or a form of vandalism to graffiti currency. Hmm.. to me it doesn't seem like a govenment agency that is doing this research or did they get some special approval? I posted the picture of the dollar bill. The serial number is G 65216789 A. I would like to make some new friends and see where the bill has traveled. The bill departed my hands in orange county, california at a starbucks purchasing a iced green tea, 5 pumps classic with extra ice. Please examine the bill and make sure the serial numbers match and post a picture so I know it is legit. I'm not really hoping to get a response real quick, but who knows when i'm old and grey 30 years from now I might have a pen pal to chat with.