Thanks guys! Had a bit of a rant there. Yes I can only hope that this is the only issue and it'll be clear sailing after this. I will mention the brake booster when I talk to them next. The mechanic thinks its the ABS module. However, he has to "ask" permission from the warranty tech support back east. If they don't think that is the next step then he can't touch it.
The first time it was in they had him isolate each corner until they found the bad caliper, but the problem came back a few days later. If this problem comes back a third time we are definitely gonna push for them to take it back and give us a new one
I will post again when it comes back or when they know more.