We received three calls from this number starting at 11:50 PM and ending at 12:15 AM.  The Caller ID read "Oak Lawn Village."  (It was the reverse-911 system.)

The three robocalls were identical and were from the Evergreen Park Police Department.  They basically stated that there was an "all clear" about their earlier chase of a suspect who was now in custody.  

When you get these robocalls, you have to press "1" to listen to the message and press "1" again confirming that you heard the message.  I did so each time, so I don't know why they had to call repeatedly and scare the heck out of me (and just as I was almost back to sleep)!

The thing is we didn't receive any calls about any chase or emergency to begin with -- only these three calls that the coast was clear.  

I truly understand that there is a need for a reverse-911 system.  I just wished it worked better and that they didn't bother people in the middle of the night for an "all clear" message made repeatedly.