The happy couple then posted pictures of Ms Dabrowska and her son in the back of the taxi on Facebook, the Daily Mail reported.
But their joy turned to anger when Mr Errington was asked by the driver to be paid a 100 pound (NZ$233) fee for clearing up.
Mr Errington paid the driver around £40 (NZ$93) for the fare but soon after the taxi driver banged on the ambulance window asking Mr Errington to "clean the taxi", the Daily Mail reported.