You can purchase this book here on Amazon.
Those Disneyland lines can be doozies for your minis but time might fly a little faster if your kids are busy looking for Patrick's house! Maybe you can offer an incentive to the child who can find Patrick's home first (a churro will suffice.) Now only keep reading if you want me to spoil where it's located!
Patrick's little house can be found in Adventureland at the base of the tree that holds the sign for the Indiana Jones Adventure ride.