This puzzle really has me stumped: I’ve been working on it for several days now, read all three hints, and I just can’t crack it.
I’ve tried so many arrangements of the route cipher, using the two sixes as it says the third hint, but it’s never anything coherent. The third hint also says that there’s another step and that the riddle is referring to something else. I thought that might be the Route 66 song, but I can’t find any way to work that into the puzzle.
Any further hints from people who’ve figured it out would be greatly appreciated.