A Pawtucket police officer is injured after being involved in a crash with an alleged drunk driver.  Police say Darvin Benitez of Central Falls was driving on Division Street early yesterday when he turned into the path of a police SUV.  The officer was treated and released from the hospital, and he is only expected to miss a few days of work.  Benitez and a female passenger also suffered minor injuries, and Benitez was charged with driving under the influence.