I believe this was fixed in Classic RA but it seems to have made its way back to RR2. Security alarms typically go off at odd hours - like 3:00 am.
1. The ability to turn lights on at something other than 100% is advantageous because it allows you to turn a lot of lights on without blinding the homeowner that just woke up.
2. Returning lights to the previous state is a NO GO! At 3:00 am all the lights were off. As soon as the owner silences the alarm the house is completely dark again. I have no problem telling the owner he will have to turn the lights off after the silencing the alarm. It might be an issue if the owner is out of town when the alarm goes off. A well planned vacation program would cure that.