No puzzle here.. Just park at the posted coordinates, proceed inside (12-5 Sun, 12-8 M, 9-5 Tu/W/Th/Sat), and retrieve stage two, shown below:
Use Chrome, not Internet Explorer. If the picture doesn't show up or doesn't look right, hit reload. Don't ask about the cache at the desk; they don't know anything. The final is a short drive away.
This cache is similar to recently archived puzzle of mine, stage one.
If you get stuck, get a hint here.