Cops could check texting and phone call logs under a New Jersey law . The state has expressed concerns with the legislation . An often-quoted study on distracted driving known as the `` 100 car study '' was conducted in 2003 and 2004 -- before the introduction of Facebook ( 2004 ) , Twitter ( 2006 ) , the iPhone ( 2007 ) , and iPhone apps ( 2008 ) . Distracted driving concerns federal and state officials .
Cops could check texting and phone call logs under a New Jersey law . The state has expressed concerns with the legislation . Distracted driving concerns federal and state officials .