This cache is not at the posted coordinates (but they are meaningful). To find the hide, you will need to complete the nearby "Martinsville Uptown and More Part Deux" Adventure Lab. Each correct answer at the stages of the Adventure Lab will provide you with the information you need to locate the bonus cache.
N 36 4A.BC0 W 079 5D.EF9
The cache is hidden not far from several of the Adventure Lab stages. The container is the former final stage of a rather ancient night cache. It has seen better days, but it's still got some life left in it. A lot like Martinsville.
Congarters to AdequateFootwear and LCSM, FTF.