that is a base loaded 5/8 wave VHF high band, not a low band antenna. Too short to be low band.
CB antennas they have used (and still do) are the Wilson 1000 or K40, both of which have much longer radiating element and large FAT loading coil at the bottom.
Makes sense they would be installing high gain VHF 5/8 waves with their recent P25 VHF reported usage.
Should have done that years ago instead of drinking the 7/800 Race to Waste Kool-Aid.
Guess being poor has forced them to become more prudent and resourceful.