Please tell me if it is possible to obtain a document from the court...

You cannot obtain a document from the court that would automatically stop mobilization during the trial, because the court does not provide such protection from mobilization, but rather reviews the legality of the CCC's decision. Moving around the city during the trial does not guarantee protection from mobilization unless the court's decision is passed or declared unlawful. You can carry court documents with you to prove that the trial is ongoing.