Well, their website has a disclaimer about this. On http://www.dominos.com/home/index.jsp if you look at the bottom of the page, you will see a legal disclaimer about the whole "You Got 30 Minutes" deal. It says:
Because safety is a priority "You Got 30 Minutes™" is not a guarantee but an estimate. You may get more. Must ask for offer. Minimum order required for delivery.
This means that there's not even a guarantee that you'll get your piza in 30 minutes, because they can just say that safety was a priority when delivering your pizza. So what does this offer to the consumer? I guess it means that Dominos will try their very best to get you your pizza in 30 minutes.
So, if you're trying to get a free pizza from Dominos, this might not be the way to do it.
Best,
Trinifawk

