Is there anyway to stop, bypass, or trick T Mobile Family Where?

I'm 18 and since I started college, I've been going out a lot more and partying and all those things normal college kids do. Well my dad being the overprotective and worried person he is decided to start tracking me with T mobile Family Where (without telling me, I only know because T Mobile sends a text letting me know I'm being tracked). I know that it uses cell phone towers to give an estimate of my location, so my question is; is it possible to stop this besides turning off my phone and removing the battery? I have a jailbroken iPhone 4, so if there are any cydia apps or tweaks that could help, please share!

Can't be done. Has nothing to do with the software in the phone.