How do I get my mum to tell my her address in Arizona ?

Long story short (but still pretty long) , I wanted to go to Toronto, Canada where I was supposed to meet my gf, so I drove all the way from New Jersey to the border in Michigan to find out that theres a new law that requires me to show my pport to cross to the northern gay wilderness (It wasnt like that the last time i went to Canada) so I drove all the way back home in NJ to get my pport, I looked all over the place but couldnt find it . So i called my mum who left to Arizona and I got her to admit that she has my pport, so i asked her to post it back to me but she refused because she doesnt want me to go after the girl because "she hates her and shes gonna ruin my life" so i told her to post it or am coming after her she said "you wont". So she kinda provoked me and I decided to go after her, all i knew about Arizona is that its a dessert with a lot of cactus and rednecks somewhere in the south. At first I wanted to drive but it turned out to be too far so I took a flight from JFK , New York to Tuscon, Arizona. When I got there I called my mum to tell her that I am in Tuscon , at first she didnt believe me so I had to call her from a land line for her to see the area code. She laughed and said that she wants to teach my stubborn a lesson and she doesnt want to tell me where she's staying! I dont wanna report her or anything like that i just want her to tell me where she is. And yea this Arizona place is cooler than i thought, everyone likes my accent for some reason and calls me the "italian guy"