This sort of thing happens easily enough, even without Soldiers taking pictures. Interpreters, local nationals, and others with access to the base can and have mapped them out using their own phones.
For all the power that our advanced precision weaponry brings to bear, social media proves to be an extremely effective counterweight to it when in the hands of a motivated insurgency. Something to remember. ;-)
Hell, it doesn’t even take that much. An 82d ABN BN we were working with nabbed an interpreter who had sketched out a detailed map of their COP for his insurgent buddies simply by pace count.