Exceptions to rulings or orders of the court are unnecessary. For all purposes for which an exception has heretofore been necessary, it is sufficient that a party, at the time the court ruling or order is made or sought, makes known to the court the court action sought or the objection to the court's action and the grounds therefor. But if a party has no opportunity to object to a ruling or order, the absence of an objection does not thereafter prejudice that party.
Colo. Mun. Ct. R. P. 251