Do Pontiac grand am's have a turn off switch for low motor oil level?

My sisters car died when she was
driving yesterday. It never got hot
and the oil light didn't turn on until
the car died. When her boyfriend
went to look at it today the oil was
bone dry. They put almost 4 qts of oil
in but it still won't start. Did the
engine likely seize up or is there
maybe a turn off switch that needs to
be reset?