During my lunch bolus, the pod just quit and started alarming, telling me to change it. Plenty of insulin left. So, I had to warm up some insulin (I always keep it in the fridge) and change it out. No warning, no explanation.....do I call Insulet, or just throw the bad pod away. Everything was going fine with it up until this point.
Sorry you had the pod fail. Always annoying when all these gadgets designed to "help" us seem to cause us more annoyance than anything. Thankfully it sounds like you had an extra pod and insulin as backup so you were not left w/o a way to get some insulin for your meal.
Regarding your Q, I'd call it in. They will want to know stuff about how long it been on you, what it was doing when it failed, what the alarm code was (which can be found in your history screen), etc. I don't know what their response will be, but the times that I have had one fail similarly, when I called it in I was offered a replacement (that would be shipped out w/ my next order). It's worth a shot at least :)
That is a bummer. I'm sorry you had to deal with that. My guess is, due to the fact that you were bolusing at the time, an occlusion occurred. I don't think that Insulet will replace it if an occlusion caused the problem, but you never know.
If you're feeling adventurous, you could also wear your next 3 pods until 8 hours after their initial expiration alarm to make up the time that you "lost" with this pod.
I agree with calling them with the error code. Sometimes is is an occlusion, but it will usually throw that up in a message on your PDM (something like 'Occlusion recognized, deactivate pod'). The error code will let them know what kind of error it was for them to determine if they should replace it or not.
My son aways wears them the 8 hrs extra if he can. 
I hate that. Mine meant it was defective and I got screwed by 6 other in the same box. So be careful not to get caught without. It actually made me switch back to my ping ,:’(. Good luck!
I have had that happen to me before. 1st don't throw that pod away. Go to your PDM and the home screen and select My Records (UST200)
Then go down to Alarm HistorySelect it. Then find the Pod alarm and highlight it then push the ? mark button on your PDM.
Write down the code. Then call Insulet Customer Service. Tell them you had a POD failure.
They will want the code you wrote down, The Type of Insulin you were using, The Lot and Serial Numbers off of the POD.
They will ask you if you Pinched when putting the Pod on and if your Insulin was less than 30 days old. Most times they will replace the pod in your next shipment at no cost.
Now I have also on occasion withdrawn the insulin from the old Pod with the new Pod syringe and added additional insulin from the same vial. That might not be koshered. However I have not had problem and funds are scarce here.
I too have drawn insulin out of syringes that have a problem within the first few hours of being activated. One thing I also do routinely after I put on a new pod, I "prime" it with 1 unit of insulin and then don't bolus for at least an hour. I found relatively soon after I began using the Omnipod system in October of 2008 that giving a big bolus with a new pod rather frequently results in some kind of pod failure. I want this system to work because overall it's the best tool I've had to deliver insulin since September of 1966.
How often do they keep reminding you to change in that 8 hours?
The pod was already two days old - wonder why/how an occlusion would occur? When I took it off, though, I was quite bruised by this one.....
I wrote down the code - I'll probably give them a call on Monday.
Bruising would imply blood in the cannula which it doesn't like.
You don't have to wait. Tech Support is there 24/7. I talked to them at 4 am one morning.
I wondered about that....