You should not have a disaster like that while the game was paused. Are you absolutely certain that the game displayed "GAME PAUSED" at the bottom of the screen when this happened? It's very easy to accidentally pause or unpause the game using the space bar.

We have put a lot of testing into the pause feature and have never seen anything like that occur. Would you mind describing exactly how you were pausing and unpausing the game? That might help up determine what happened.