If my Final Exit Visa Expired but i'm still Inside the kingdom

Sir/mam is there anyone knows if what will happen if my Final Exit Visa Expired but i'm still Inside the kingdom. ...

(situation)
my Final Exit Visa will expire on this month Feb 11 2018. BUT because of some reason i need to stay for a maximum of 1 week..what should i do then?

Dear,
If you will not  leave before final visa expires, you will have to pay penalty, probably some more complications will come.   My advise is you arrange with employer to cancel the final exit visa . Batter you discuss with employer now. Rather you have to tell him aftetr problem comes

do you have a idea if how much would be the fine sir?

I guess it's 1000 SAR. Check in MOI website too !!

i have same problem my final exit is expired because i was not informed at time of when final exit was issued two months ago .
i do not know what to do now .