For the entertainment of replaying to the "current day History" I must reply:
Current man creates big things called "buildings". These "buildings" have been quite successful in both scaring vast tracts of land, and staying where man left them for a long time: Stonehenge, Pyramids etc. My guess (and it can only be a guess) is future historians (again, assuming such a fascination exists then) will find a great interest in the etchings left in these man made structures, and will treasure signs like "Fire escape", "Ladies Toilet" and "Thanks you for shopping with us!". I suspect that rust lined holes in the back of random rock walls will be of little interest to them.
If you aren't willing to solve your own problems, how can you expect others to?