It sounds like they aren't operating on WCPD's frequency because they are continuing to operate on their own frequency with WCPD simulcasting the dispatches on both frequencies (you won't hear them on WCPD, only on MKPD and vice versa)
How else would they continue to steal jobs from the Various EMS and FD's in Westchester County? On a serious note, who cares what they have, or how many? I'd rather them be prepared for the worst.