Smart Impound?

I know i aas overspeed on al Qudra but I do not know where this smart impound came from… can someone please tell me what happens now ? and is it that I have to pay and also keep the car impounded… or if I keep the car impounded I dont have to pay the fines ?

I know i aas overspeed on al Qudra but I do not know where this smart impound came from… can someone please tell me what happens now ? and is it that I have to pay and also keep the car impounded… or if I keep the car impounded I dont have to pay the fines ?