Find my iphone alert lock screen froze any solutions?

Just did the IOS 6 update on both mine and moms iphone 4s and its fun. I tried the play sound on find iphone app on my phone to hers and it went off and i'm like o cool. But now its frozen on the lock screen saying find my iphone alert and everything is frozen when I go to hit ok it does absolutely nothing and I tried restoring so i'm not sure what to do.

Considering how new it is which I assume you are using the jailbreak version, I don't think solution would come so fast.