A 22-year-old man with a history of schizophrenia is brought to the psychiatric emergency department by his family. He has been progressively less responsive over the past 4 days. On examination, he is mute and immobile, staring blankly ahead. When the examiner lifts his arm, it remains in the raised position for several minutes before slowly drifting down. He resists passive movement of his limbs when the examiner attempts to reposition them. His vital signs reveal a temperature of 100.8 degrees Fahrenheit and heart rate of 110 bpm. His family reports he was adherent to his antipsychotic medication until symptoms began. Which combination of findings is most consistent with the assessment of catatonia in this patient?