A Farmingdale man saw his drunken driving conviction upheld stemming from a Jan. 4, 2016, crash in Chelsea that left three people — including him — with serious injuries. Rowe L. Palmer, now 39, had appealed the conviction to the Maine Supreme Judicial Court, also known as the Law Court, saying the blood drawn for an investigator at the hospital was illegal because it was done without a warrant. In an opinion published Thursday, the court that it was legal under a “now or never” situation because Palmer was scheduled for immediate surgery. “A circumstance that does justify a warrant-less seizure is a ‘now or never’ situation—in other words, where an officer cannot ‘reasonably obtain a warrant before a blood sample can be drawn without significantly undermining the efficacy of the search,'” wrote Supreme Court Associate Justice Jeffrey Hjelm, writing for the six-judge panel. Palmer was convicted by a jury in Augusta in October 2017 of aggravated criminal operating under the influence and aggravated assault, both in connection with the head-on crash on Route 9.