So, the text of the Fourth Amendment is as follows:

The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.

The crux of the 4th Am. is reasonableness. A warrantless search of your home is presumptively unreasonable and can only be performed in very certain exigent circumstances. Most of these are emergencies. Say your house is on fire, the firepeople can enter to put it out, without a warrant, and if they see your mountain of cocaine while they are in there, you're fucked.

A game warden wanting to check your freezer is not an exigent circumstance that would bypass the warrant requirement. A game warden could easily go to a judge and get a warrant by showing the judge probable cause to believe you are doing something naughty.

So, I call bullshit.