No, we can't do that, unfortunately. That's why it might be better to catch a High GM that is online to do the bot check. And no, before anyone asks, the @whomap command will not be given to players.
But chances are that the botter will frequent the map with his bot, so there might be another time when the bot is online on that map. So it can always be checked from time to time. In that case, it might be helpful to have a screenshot of the possible bot, even if it does not show the name of the character.