3000.00 free grocery's {senior alert} {Phone Call} I Hung up i think scam?

I let this call go to voice mail when caller id showed "senior alert", I knew it was a scam. They didn't leave a message, this is a good clue this is a scam

November 6th, 2013 at 7:07pm.  Allowed this call to go to voicemail.  Transcript of recorded message:

(first few words cut off) "...to the following message.  If you or a family member are 60 years old or older, you now qualify under the new National Senior Assistance Program to receive $3000 in free grocery savings certificates that can be used at over 100 grocery chains across the US.  In addition to your $3000 in savings certificates, you will receive a free emergency medical alert bracelet or necklace.  This medical alert device is designed to save your life if you ever experience a fall or any other emergency.  Press 1 now to speak to a representative and have your $3000 savings certificate mailed directly to you and learn more about this risk-free offer.  Again, press 1 now for more information or press 5 to be removed from this opt-in list."

Total length: 57 seconds.  

I don't give my phone number to anyone and I especially don't opt-in to anything.  Additionally, there aren't even any seniors in my household.

Has called our office twice in the past 10 minutes. Sounds like they are trying to scam senior citizens. Won't take you off the list and won't respond when you try to speak to someone. Same pre-recorded message as the calls from from 323-281-1438, which has also called twice in the past hour and a half. Obviously not legitimate.

Same as preceding. Probably a SCAM.