Go preaching anyway. No one can take away talking about God's kingdom from you if that's what you feel compelled to do. Those guys are NOT Jesus! Not even close. They don't overrule anything he said and they have neither the right nor the authority to. No one's knees will bend to their names.
Acts 4:17-20 NET
But to keep this matter from spreading any further among the people, let us warn them to speak no more to anyone in this name." [18] And they called them in and ordered them not to speak or teach at all in the name of Jesus. [19] But Peter and John replied, "Whether it is right before God to obey you rather than God, you decide, [20] for it is impossible for us not to speak about what we have seen and heard."
I'd pull an Apostle and completely ignore them.
Insanity!!!