The politically connected Port Authority Police big shot who padded his résumé with shady college degrees and wore fake medals was fired yesterday, authorities say.

Jay Alpert, an ex-Bergen County sheriff and Hackensack sergeant, was appointed a senior manager for the PA’s Office of Emergency Management after a recommendation by the administration of NJ Gov. Chris Christie at a salary of $110,000.

The PA’s inspector general re-examined Alpert’s academic credentials and discovered his bachelor’s and master’s degrees came from LaSalle University, in Mandeville, La., a “diploma mill” affiliated with a church whose founder wound up in prison for fraud. Sam Davis, Alpert’s lawyer, said his client “acted in good faith.”