Incorrect on so many levels. I had equipment that was seized by the FBI. My equipment was in a shared cage in a large colo. All they have to do is show the search warrant to the building owner or their agent. The warrant will be specific as to what location and what property they are allowed to seize. I hired a law firm and fought this for 2 years. Neither myself or my company was named in the warrant but because we shared space with the named company they where allowed to seize my equipment. The court ruled that since the accused had access to the physical devices the seizure was good. we even appealed to the 5th circuit and they upheld the lower court. The FBI did very quickly let me have images of the hard drives so I could restore other servers. If a warrant is presented to the property owner and they are asked to not share that info than they can get charged for doing so.