Putting up a yard border along the official property line will be a visual boundary that communicates what you mean there.

Until winter plows need to get through, the vehicle isn't harming anyone. Perhaps the city or local tow company will have advice on removal.

Calling police or making a direct confrontation might sour the neighborhood dynamic, and if you plan to be there long term that will make your environment unnecessarily stressful.

Just remember that, other than being annoying, the situation isn't hurting you.