Someone’s gotta give. City Council members who are pushing a bill to transfer of the NYPD’s Collision Investigation Squad to the Department of Transportation remain defiant that if the de Blasio administration does not drop at least some of its opposition, the mayor might be looking at the very first veto override of his seven-plus-year tenure. Council Member Ydanis Rodriguez, the bill’s sponsor, reiterated on Tuesday that the purpose of the bill is to give the DOT control and oversight of the NYPD’s collision analysis unit, even though the NYPD would retain its traditional role of making arrests or collecting evidence if investigators determine that a vehicular crime has occurred.