Americans are known to have an entrepreneural spirit, and they're very clever at advertising for their businesses. Nowhere is this more apparent than when are on the road. I'll illustrate with an anecdote.
When we went to Orlando or Tampa to theme parks, we had to take the Florida Turnpike, as we lived on the south of the state. On the way, there would be these billboards for this thing called 'Yeehaw'. It would beckon us for many kilometres, signaling the exit you had to take to get there. There were hundreds of signs, saying things like :