ben cousins , 36 , has handed himself in at fremantle police station .
arrest warrant was issued a day earlier after he failed to show up in court .
cousins was on bail for an alleged low speed police chase on march 11 .
charged with reckless driving , failing to stop and refusing a breath test .
cousins has been involved in a string of bizarre incidents in the weeks since which have seen him hospitalised for mental health checks .