The dealer got me with that also:
Maintenance plus for up to 45k they got me for 995.00
Zurich Vehicle Service Contract they got me for 2,561.00
Zurich Tire and wheel plan they got me for 1,323.00
Zurich Gap insurance 700.00
Zurich Shield ??? can't seem to find the cost for this one.
You might have already read the thread but there is some good info
here
I would rather have the warranty from Nissan and not Zurich but since they already put the Zurich Shield on I don't really know what to do either.