Note that “no permit” areas are common in any 3D survey - these holes are “filled in” by setting sensors /recorders around and adjacent to any non-permit area. This allows for “undershooting” the non-permit area and acquiring the subsurface info under that area.
This same approach is used to acquire data under houses, protected groves, water wells, etc.
This approach works for smaller non permit areas - larger non permit areas will have data gaps and lower fold (quality) seismic depending in the size of the non permit tract.
Perfectly legal and legitimate - the seismic permit pertains to allow the contractor to lay out sensors and other seismic acquisition equipment ON the property.