The only way to legally disable the seatbelt warning beep is to wear your seatbelt.
As far as the popping noise, that is really odd. Are there any other symptoms associated with the noise, like the car pulling to the left or right, or a violent vibration??
As far as the popping noise, that is really odd. Are there any other symptoms associated with the noise, like the car pulling to the left or right, or a violent vibration??