I believe laws already exist in Steamboat Springs that deal with public drunkenness, littering, open containers, underage drinking and, as stated in your article, also utilizing the river access at the Chuck Lewis Wildlife Area without the required habitat stamp from the Division of Wildlife.
I would argue that it is not right to outlaw tubing on the Yampa River (above Fifth Street) just because some/many tubers choose to break these laws and local authorities choose to look the other way. Tubing is not the problem.
Our family enjoys riding our bikes to Dr. Richard Weiss Park several times a week in the summer months (as do many other local families). My children, ages 4 to 9, enjoy tubing down from the Iron Horse Inn to where the hot springs pool empties into the Yampa. Yes, it is often crowded and many of the passing tubers are drunk and obnoxious, but usually this is a pleasant and inexpensive way to enjoy this Steamboat park and the Yampa River. To deny that activity by placing a higher value on other activities (fishing) seems shortsighted.