Hi Josh, The dash board information panel and also sometimes the radio central section do stay lit for varying amounts of time after switch off anything from 5 mins. upwards. I have seen it lit up to half an hour, don'tknow what the maximum is.Also if some time later you try the locked door handle it lights up again . There has been a previoue post on the subject and it was something to do with the BUS wiring and which circuit was used last. So it is normal and nothing to worry about.
Colin.