From where you park your car you can see a green sign at ground zero. There are five numbers on this sign. Number them A, B, C, D, E in descending [on the sign] order [they will not be in numerical order].
Then, discover the final hiding place by subsituting in the following formula:
N47 39. B [(A+E)-B] E. W114 11. [D-E] [B-D] [B-D]
Final is a very short walk away. Be safe and watch for cars, they can speed along this part of the road.