Only a few a dozen NYPD members were placed on unpaid leave Monday after refusing to get the COVID-19 vaccine — but thousands of unvaccinated employees remain on the job with pending exemption requests, the city’s top cop said. Police Commissioner Dermot Shea said 34 cops and 40 civilian members of the force — which account for fewer than .15 percent of NYPD employees — did not comply with Mayor Bill de Blasio’s mandate requiring most city workers to get their first jab by Monday.