Okay, this might be odd, but who thinks they can identify the car on this sign at Wildwood State Park in Wading River, New York?

https://www.longislandexchange.com/wp-content/uploads/2014/01/IMG_5086.jpg

https://www.longislandexchange.com/long-island-parks/wildwood-state-park/

If that doesn't help, zoom in on the highest resolution of this shot of it here:

https://commons.wikimedia.org/wiki/File:Wildwood_State_Park;_Trailer_Campground_- %26_Park_Police.jpg

To me, it looks like a 1949-54 Chevrolet two-seater Business Coupe, of some kind.