Abandoned 71-72 on Roadside - Is it possible to....?

[Frizzle Fry]

A nice lifted 71-72 4x4 appeared on the side of the road on my commute a couple days ago and I figured the guy ran out of gas and went for a can.

Well, it's still there and it now has a sticker/notice on it. It'll probably get towed away in the next couple days if no one claims it so...

First and foremost I'd like to help the owner get it back if possible.

But, if (big if) that's not possible I'm wondering what the process might be to acquire an abandon vehicle?

I tried to snap a camera phone pick today but another car passed just at that moment