The Siren Board

OK, so about 7 years ago we were just outside of Millville, NJ, right by the ShopRite shopping center, on our way to the beach. When we were stopped, I heard a siren going off very nearby, and we drove by after it was finished, and sure enough, there was an STH-10 on a pole right around this location:

https://www.google.com/maps/@39.4194953 ... 56!6m1!1e1

But now it is nowhere to be found. Anyone know what happened to it?

I've lived in Millville for 28 years, and never remember having a STH-10 in this area.