It was more than just cut. The airbag sensors were removed and his car was re-wired so that it wouldn't alert him to the airbags not working
www.wired.com/story/he-ble...
A federal IT staffer filed a complaint about DOGE, then went public. Shortly after Elon Musk boosted a post calling his claims false, his brake lines were cut. Now he’s suing for defamation.