I assume that local control, (i.e. tower controller/ground controller) would want to distinguish between an airport ops vehicle, fire apparatus, sweeper, plow, EMT, law enforcement etc v.s. an aircraft.
I could be mistaken.
Regardless, because I live within 1/4 mile of KFLL, my monthly statistics are skewed unfairly v.s. other participants whose setup is not in close proximity of an airport where they would, otherwise, pick up airport ground traffic.