if i were you i would get in contact with the council asap and arrange a payment plan with them,which they will do,in that case if the balifs do come back and try and take the car etc you have grounds to stand on once your sorted with the council,but for now untill you sort it with the council i would move the car asap and any valubles out side the house,also tell your dad to keep all the windows and doors closed and locked,if there is a window open they can enter the building without it being breaking and entering,also if they come to the door dont let them put there foot in the door if they do that,that is also not breaking and entering.

hope this helps and get in contact with that council asap