Presumably they didn't get a warrant to search his property because they didn't have probable cause for what they believed would be a Fourth Amendment search I

Presumably they didn't get a warrant to search his property because they didn't have probable cause for what they believed would be a Fourth Amendment search It's kind of the whole point of this escapade. If they had the probable cause to get a warrant they would've just done it and not paid the money for a drone flight. They believe that because this search did not involve going into his private property behind a locked gate by government agents and instead the evidence was gathered by flying above his property in airspace that he does not control it was not a search that is subject to court review or the need for a warrant under the Fourth Amendment If they could've gotten a warrant they would've just done that, and because they couldn't they came up with this alternate scheme