Fellow speaker,
If you have a heckler and they continue to annoy you, interrupting your speech and not letting you get your points across, and you have offered to meeting with them after the meeting...you can ask the person to leave. If the audience is on your side, you could have one less heckler in your audience...and make it less likely that someone else will take off where the ejected heckler left off.
One less,
Tim