Looks like there's no standard term that everyone uses; I'd say it's entirely forgivable that the tech called it "static" for lack of a better word.
I submit that a definition of static electricity as "charge at rest at non-ground potential" is so broad as to exist in any non-trivial circuit and many trivial circuits. Such a definition is therefore less useful than more common notion as electricity generated as a result of physical surface interactions of dissimilar materials.
Calling it "static electricity" is likely to cause reasonably intelligent and well-educated people to conclude it's related to wearing wool socks in Winter while being insufficiently grounded, as opposed to charge being there as a result of normal circuit operation.