Yes, in the "I'm a victim now" setting she can refuse to consent to a tox screen and a BAC. An hour or two before, when she was in custody for drunk in public and continuing through when she was in custody and taken to Duke Access for drug and/or mental health treatment, she was technically under arrest for being intoxicated (which can mean alcohol or drogs). She escaped that arrest by crying rape, became a victim, was released from police custody, and then refused to consent to tox and BAC (blood alcohol content) tests.
She had to have gotten some advice along the yellow brick road to the Hospital SANE Nurse.
Unless of course, she'd taken the drugs herself, and didn't wish that to show up on the tests.
Unless of course, Kim gave it to her, and threatened her within an ounce of her life if she submitted to tests.
Or... the boyfriend or her "ride".
Do you think the PD scraped the floor of the Duke Boy's living room in the area where CGM spilled her drink? Can this be done? And to show that a "drug" was slipped into her cocktail on the premises?