The sheriff of my county that I helped elect and who is part of the Constitutional militia of my state ought to have whatever equipment he deems necessary to do his job serving and protecting the people of my county.
A tracked vehicle might have come in mighty handy in the three forest fires he dealt with in his first year in office and the thousand year flood he handled in his second year. For all I know he made good use of some.
I know he did a damn good job on all of it.
If you actually ‘need’ an APC, then you don’t need police. You need a SEAL team. Somehow over the decades, police managed to be police without the stuff.
If you need tracked vehicles for rescue, they are available from any heavy equipment dealer. Budget the cash and buy one.