Yergl! Hard to see something.
All what follow is more based on guesses than on real observations. If indeed a 3600 (so light-duty truck), and if you and any other well-meaning people accept to see in this blurry picture the Chevrolet hood emblem in the "normal way hat"⁽¹⁾, 4 headlights and the big bar with the additional lights in the grill, then it seems to look like a 1958 Task Force Apache model:


But I'm not sure to admit it again under torture



Some Panels were transformed, but I think police forces didn't "play" that way with 1 or 2 years old vehicles
So I think it's a Suburban too. And 1960 seems to be the accurate my, with what looks to be the fender emblem on the exact place the 1960 one was.



Thanks.
I leave some comments when crossing "lost" vehicles too, but I think you "met" most of them
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(1): pure personal way to remember the difference between 1958 and 1959 models: "normal hat" vs. "overturned cut sombrero". If anyone has an academic way to say it, please share it