Exactly. In New Hampshire if you are caught trespassing while hunting it will result in a revocation in hunting privileges.

General Hunting Laws

Loss of License: Anyone found guilty of violating any Fish and Game regulation will lose his or her hunting privileges for a minimum of one year.
*enter posted land without permission of the owner;
*litter on any public or private land;
*willfully tear down, obstruct or leave open any fence, gate or bar belonging to, or enclosing land of another person or remove or deface any posted sign or property;

I'd check your states regulations and call the law.

This is taken from the MI DNR website: http://www.michigan.gov/dnr/0,1607,7...747---,00.html

Recreational Trespass
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Trespassing is illegal and seriously erodes support for recreational hunting. Permission is required from the landowner or leaseholder before you may hunt on any farmlands or connected wood lots or on any fenced or posted private lands. Landowners may grant verbal permission. Hunters are required to produce their hunting license to landowners upon request.

If you wound an animal or bird and it runs or flies onto private property, you have no legal right to pursue it without permission of the landowner. Without permission of the landowner, you are trespassing and subject to prosecution.

Again it's clear. Get a pic if you can but call the law.