-- what time the offence occured ?
-- Do you have a concrete proof that you were rushing to
the HMC EMergency ?
-- Does the HMC docuemnt shows the same date / time of
the offence taken place ?

I think YOU WILL GET reprieve from the fine, if you put up your case cleverly. You may need to type a letter in Arabic stating the circumstances and fotocopies of the HMC document.

Regarding our "Car Registraton also expired"... pls dont write this very casually. For this, you may be fined. As Novita says, it may be QR. 1000. And it is not a petty offence