Cache is located in a runoff parking area for Wells Fargo (I think) in WDM. It's generally pretty desolate and is rarely used -- I would think short term parking to find the cache should be fine, but you wouldn't want to pull your camper in and stay for the night (for fear that you'll draw the fuzz).
Cache contains log and a small pencil. To be safe, I'd bring your own pen/pencil (BYOP).
Cache is not large enough for bugs or geocoins, but should make for a nice park and grab.