The cache is not located at the posted coordinates - but they do lead you to a convenient place to park.
The actual cache is hidden here: N 47 34.AAA W 122 07.BBB
To solve the final coordinates you will need to exercise your brain a bit. Here are a couple quotes from Sir Francis Bacon to get you warmed up:
"thEy arE ill diSCoveRERS thAt ThinK thEre Is nO LanD wheN TheY cAN See NotHing buT SeA."
"ReadInG makEtH a FUll Man, cONFErence a Ready Man, AnD WRitIng An exacT MaN."
Sorry about the typography, my keyboard acts up on occasion. But I'm sure you will agree these quotes are clear, profound, and enlightening. You should now be in a good frame of mind to consider your upcoming search. So go out and get that smiley!
You can check your answers for this puzzle on GeoChecker.com.
Oh wait, I almost forgot - AAA can be found within the first quote, BBB within the second.