Aside from the legalities and ethics, does one 30 minute session have half a chance of showing that big buck that might be using the spot?
Where I hunt, especially during the rut, bucks tend to be wherever the does lead them. Not regular visitors to the same spot, or very punctual. They may show up several days a week, but not on that day we're checking on them. That doesn't even account for the old bucks that scent check a field from within the heavy brush. I've got cameras out year round in unpressured areas, even in the summer it might be 3-4 days between sightings of specific bucks.
OP shows not only a lack of ethics, but knowledge of deer behavior as well.