Making a car difficult to steal

They make a in line fuel cut off switch that hooks to the fuel line under the car and sticks threw the floor .like a t shut off.maybe an I pod they have the find my I pod app that you can access from any computer my oldest daughter ran off one time she is 17 and grown she took her I pod and I found her by useing the app but its all useless if the person stealing the car uses a tow truck hook up in the back of a truck like the guys that do,repos they can hook up and drive off in just a few min. I was. Thanking of getting a wheel lock like u see in the movies that the city uses for parking in no parking spot