I'm not sure there is a libertarian position on how these interactions ought to play out. I think if libertopian police are threatened with deadly force, they would be able to return deadly force. If they are faced with an unruly suspect, they would use some level of force to subdue that unruly suspect. I don't think the unpleasant practical realities of policing can be simply tossed aside in the name of liberty.
Indeed. What's at issue here is not whether or not police should exist and be able to use force to do their job, I was objecting to Loren's kneejerk defense of every single incident of police using force (up to and including deadly force) by arguing that if you don't want to get a beatdown or tasering (or worse) from armed employees of the government, you should unquestionably do what they say, otherwise you're basically asking for it.
To me, that doesn't sound very libertarian. And it doesn't either to Jason Harvestdancer who said "the claims to libertarianism among the police defenders are not true".