I don’t see the issue here.
The seizure of the devices happened with appropriate warrants, the actual search was done with appropriate warrants, there’s apparently some weird time limit on the search warrant on a seized device, and some of the maintenance involved took place outside that weird time restriction.
The actual hacking of the device and the actual search of the contents of the device were with a warrant.
There is no actual logic to having time windows to access confiscated devices that are not ever going to be returned. Anything that’s not technology is completely unaffected by that silliness.
There’s no world where a legally confiscated physical object is held to the same standard.