Woman Finds Stalker Placed GPS Tracking Device Underneath Her Car—Police On 4/23/21 at 12:15 PM EDT A man in Altoona, Pennsylvania was arrested for allegedly stalking his ex-girlfriend after he bugged her vehicle with a tracking device paid for using her debit card, according to local news reports. After they briefly dated between December 2020 and January 2021, Matthew McDonald, 46, allegedly continued contacting the victim repeatedly, according to Fox8. He would apparently text her from various phone numbers stating he was aware of her location and would drive around her workplace, she told police. The woman eventually discovered a small GPS device in her car, Fox8 reported. She also found out her debit and unemployment cards were being used to make a recurring payment of $40 on Amazon without her permission. The amount charged to the victim was estimated at $600.