I kind of thought that someone made the original call just to get enough to get a search warrant to go through the gates myself.
I wonder, if this turns out to be a hoax will all the evidence they found be inadmissible?
NO! This is far too important to be concerned about the Constitution.
The question is not whether the information was accurate but whether their was a reasonable basis for the finding of probable cause for the search. If it was reasonable for the magistrate to find probable cause based on the information given to him, even if the information later turns out to be incorrect, the search would be legal and evidence of criminal activity discovered in the search would be admissible.