There's plenty of other people that have basically already given the true answer here: if your father is providing you a means of transportation, unfortunately he gets to set the rules. Either you will have to find an alternative means of transportation, or you're stuck with being tracked.
Having said that, and I don't mean this to sound harsh, but the fact that you are seeking ways to spoof the car's location as a means to disobey your father's wishes (effectively lying to your father), even if for what you perceive are legitimate reasons, makes me actually wonder how honest you are being with US regarding your desired destinations. Maybe you are, but maybe you aren't.