If its a new student, I get it, and I was rarely salty about people making that mistake early in a semester (It happened so frequently in September that my boss would occasionally leave the alarm off until the end of his workday for the whole month). If this was still happening in April (and it did), when that student has realistically been going past that door and through the locker room since at least January, and more likely since August, its not "autopilot".
A door in a position that invites to be opened, that makes it convenient for egress, is a door that almost always can be used for that purpose. That it's closed is irrelevant - almost all doors are almost always closed all the time; it's very unusual these days to spot doors that are even ajar, much less fully opened.
This is the default mode; for doors that beg to be used for exit to be unusuable for it, armed with alarm and/or annoyed staff member, that is unusual.