Just double checking the traffic zones for car rental pickup at Pisa airport and the return at Orvieto train station. Both are outside the infamous no traffic zones, right? Do not plan on any surprises in the mail once we get home. Thanks.
Orvieto does have a limited traffic zone and camera, but only on the duomo square.
My GPS took us right through that square in getting us to our hotel on the edge of the square. When I asked the hotel desk about it, she told me not to worry, saying there's only one camera and it's only turned on in peak tourist times.
So you should be OK returning your car to the Orvieto train station. The only possibility of a problem would be if you drove up into the town center.