I think the weirdest i found was at the patron of arts quest.
I got stuck at the laser grid and started to save after i had managed to pass just one when i realized that the lasers stopped flashing on and off.. So therefore i loaded a game some time before the laser grid and smashed the control and waited until almost all the lasers had turned off and then i saved and when i loaded that game i saved.. All the lasers except two were completely off
So you see?
When you save, all the lasers halt at their current mode.
Either on or off.