Justices Thomas E. Hoffman and Shelvin Louise Marie Hall agreed that the Illinois Emergency Medical Services Systems Act is “clear and unambiguous” on whether Section 3.150(a) of the statute (called the EMS act) provides immunity when ordinary negligence by an ambulance driver allegedly causes an accident while on the way to pick up a patient for “nonemergency” transportation to a medical appointment. But they disagreed on whether a Cook County judge erred in dismissing Roberto Hernandez’s …