Even assuming, without deciding, that the initial “sweep” of Corrigan’s home [was justified], the second top-to-bottom search by the Explosive Ordnance Disposal Unit (“EOD”) after the MPD had been on the scene for several hours was not.
EOD officers cut open every zipped bag, dumped onto the floor the contents of every box and drawer, broke into locked boxes under the bed and in the closet, emptied shelves into piles in each room, and broke into locked boxes containing Corrigan’s three firearms. [..] the police had left the contents of his bureau drawers and shelves scattered on the floor, his electric stove had been left on, and the front door of his home was left unlocked.
"Because it was (and is) clearly established that law enforcement officers must have an objectively reasonable basis for believing an exigency justifies a warrantless search of a home, and because no reasonable officer could have concluded such a basis existed for the second more intrusive search, the officers were not entitled to qualified immunity across the board."
I wouldn't call it inexcusable, I'd simply call it criminal.