If experiencing crashes on startup or frequently at all with Family Guy the solution seems to be:
Open FG and wait for thank you menu.
Enter multi tasking and kill the app.
Repeat the above steps until you get the Family Guy Crash screen with "helpful tips" for crashes.
At this point tap thank you and allow the iGAuth to finish and get the authentication card.
Tap the card, wait for the icon to appear, tap the icon and enable your hacks and close the menu.
Tap the back carat at the top left to start the game load and wait.
This load screen seems to take just a little longer than normal but the game runs smooth as butter and the store correctly displays what items are free (hacked) and which ones are not.