I'm glad you wondered aloud if SP knew he'd be seen on camera. For me it's a yes.
Did SP simply know there would be CCTV, or was he more informed, say, about where cameras were located? Did he know b/c he'd been there before himself? Or b/c someone gave him the intell?
Why do I care? Because remember that refined, focused screenshot where SP appears to be looking towards the camera (and was squinting or felt tortured depending on who you ask)? Now granted, there could be more footage we've not seen, but if I were SP, I guarantee you would have caught me noticing and looking at cameras a whole lot, not just once. Accidentally. Out of curiosity or fear.
I'm SP: Don't I kind of wonder where those cameras are? After all, I go to at least some effort to kill poor MB off camera. How'd he know to avoid eye contact with the cameras?
I think he had inside knowledge of where at least approximately those cameras were. Either that or he was very disciplined, tried to remain focused and to above all not look into those cameras!