Palm Harbor, FL (WFLA) The Pinellas County Sheriff's Office is conducting a joint sobriety checkpoint this weekend. They are hoping to reduce DUI related injuries and deaths. The checkpoint will be held from 8pm tonight unitl 4am tomorrow morning on US Highway 19 N. in Palm Harbor. The Sheriff's Office is dedicating the checkpoint to Yvonne Myers. Myers was a passenger in a car that was hit by a drunk driver who ran a red light at the intersection of US Highway 19 and Drew Street back in June of 1992. She died from her injuries.