Re: Police Jurisdiction on Private Property?
It depends entirely on state law and department policy. Some agencies may just flat-out refuse to respond to non-injury collisions on private property even if some violation of the law (such as driving without a license) CAN be enforced.
If the scenario you outlined had occurred in CA (which, it appears, is your home state) then the police COULD have been able to take action and cite the driver for being unlicensed and not having insurance. But, there is nothing in the law that would REQUIRE the police to respond.
A Nor Cal Police Sergeant
"Make mine a double mocha ...
... and a croissant!"
Walk humbly with your God
-- Courageous, by Casting Crowns