New-ish DM, still getting the system under my feet here.
I'm still a little shaky on dealing with NPCs and aspects, particularly when the scene aspects should act as a penalty against the players. For example, suppose the PCs are trying to sneak past security into a BRIGHTLY LIT hallway. If the security guard had fate points, I'd certainly invoke that aspect on his Awareness roll. However, as a nameless NPC, the guard has no fate points to use.
Conversely, in a parking lot FULL OF CARS, the PCs should clearly have their Awareness penalized relative to an approaching ghoul's Stealth.
It seems like the aspect might as well not be there if the PCs don't choose to interact with it. How do I handle this? Should I hand out a fate point to the PCs as if I were compelling an aspect on one of them?