I never said the game warden would go make the land owner allow the person to get the animal, I said they can help and they can, that's what they are there for.
I was just stating that not all of us, private property owners, are like this. It's better to ask than to ignore property lines, which the OP did.
There's always someone who grinds that old "shot placement" salt in. I don't care who you are, what you are hunting, if you are shooting a $10k long range rig or a H&R single shot with irons, there is no perfect shooter. Nor has any perfect shot ever been made.
I don't think any of us have X-Ray, instant shot placement. There's so many variables that can jump in the mix, a stick or twig, brush, the animal moves last second, etc. We do everything we can to minimize these risks, but they are always there for everyone. There's no hunter, no cartridge, no technique or amount of experience that can control the events that happen between the time that primer ignites and the bullet hits it's target.