Abducted Child?

Child_abducWe are driving back from Amagansett on 495, the wonderful LIE, and on the electronic signs that generally give you traffic information, the following is written….Child Abduction, Tune to Local Radio.

From literally exit 68 to exit 23 the following was in bold print.  How weird?  What were we supposed to do? Is there a purpose behind that?  I wasn’t sure.  If anybody has any information, please share. 

I found the whole thing frightening, strange and eerie at the same time.