Is there nothing safe from George Lucas's promotion machine? Co-opting a cereal box is one thing, but turning government property into an advertisement is something else entirely.
Ah well. It is Star Wars after all. If a couple hundred mail boxes get slapped with R2D2 stickers, no biggie.
Now if they start trying to turn fire hydrants into mini Jar-Jars, well, we'll have to have a conversation about that.