What do you think of the GOP's move to halt Senate affairs?

http://www.huffingtonpost.com/2010/03/24/gop-senators-refusing-to_n_511639.html

Senate Republicans are fuming over the passage of health care reform are now refusing to work past 2 p.m.—a tactic they can employ by invoking a little-known Senate rule. Making good on Sen. John McCain’s threat to withhold all Republican cooperation from Democrats in the Senate in retribution for the majority party using reconciliation to pass health care reform, the GOP used the rule that states committees can only meet when the chamber is in session with the unanimous consent of all members. That consent has almost never been withheld—until now.

So when a completely unrelated committee came before the Senate [Armed Services], the GOP shut down.

What are your thoughts on this?