Point Reyes North District Operations Center Historic Bld.--Ghost Van

Just had a very interesting experience and wanted to share it. Maybe if someone who lives near San Francisco reads this they can add something about the historic RCA building that's near point Reyes national seashore.
My girlfriend and I stopped here to takes some pictures and just in general look around. This old building (built about 1929) is pretty isolated and a little creepy, but nothing too extreme. If you look at it on Google earth
38° 5'33.67"N 122°56'37.29"W you'll see that it has a very long driveway that looks like it belongs on a southern mansion. So anyway, we were walking around the building and as we came around from the back of the place, looking back out towards the driveway, here comes a white van, headlights on, nothing really out of the ordinary. It was about 75 feet from me when I saw it very clearly. We took maybe a dozen steps to make our way around the corner and poof---no van. There is no where it could have gone...no building to pull into (not that there was time) and impossible to make it back out the driveway without being seen. It was just gone. I couldn't find anything online about the place being haunted, but maybe someone out there knows something about the place? Thanks!