Guardiola insists that his side were right to celebrate the win over their closest challengers and local rivals, but stressed that they did not purposefully try to antagonise their opponents.
"We have to enjoy those moments. If the people cannot understand that then I'm sorry. We won a derby," he told reporters.
"If we were not correct than I apologise to all of Manchester United. Our intentions was not that. It was to celebrate inside the locker room."
City and United have been granted an extended deadline to submit their version of events over what transpired in the Old Trafford tunnel.