I think there's a mingling of several arguments here, and it's causing some of the confusion.
There is the media, which is likely going to give us bad/no press anyhow, and then there are voters.
I really don't think trying to be polite because of what it will do for the media is a very strong argument. True, many voters rely on the media, and going out of our way to make an event out of booing and cat-calling and blurting out the first genius thing that pops into our heads... it's just going to make our candidate look bad. It's also true that, even if none of that ever happened, there'd still be a negative story or two online about Ron, and the main media outlets would rarely mention him at all.
I do believe, though, that those personal contacts people have with supporters is the greater part of the battle. That was the RLC. Those were Republicans, many of whom cared enough to go there and try to lobby for one candidate or another. Some merely showed up because they are genuinely undecided. There were a lot of people in the audience during Ron's speech who were not enthused, but they appeared to be listening. Those are not our die-hard supporters who drove dozens of hours to cast a vote. Those were people who were giving Ron a shot, and seemed to come away absorbing some knowledge.
Thankfully, I don't think there were rude supporters this time.
What's being rehashed is old stuff, in the wake of the establishment/non-Paul folks booing. Their booing has not been very well-received, believe it or not. Those people that hear about it say "what a bunch of children." I really wish I could say it and not cringe after the fact, knowing that the person I just spoke to will probably Google and realize that Ron Paul supporters booed and jeered at prior speeches this election cycle. That's water under the bridge, but yeah, I still cringe.
This "I'mma do whatever I want! Yeah!" contingent we have is growing a little smaller, and that's all for the good imo. At particular events like this, the speaker gets to have the spotlight. That's why all the Trump-related stuff was silly. Likewise, the few people who did pipe up and boo during Ron's speech (you could hardly hear them) were being ridiculous. You are representing Dr. Paul's brand at this kind of event, which is billed as being at least a semi-formal type event, on par with a business-related event. That is how you should think of it. You wouldn't do this at most workplaces.
At rallies, at fun events, at places where the atmosphere is more of a party type one... go for it. Have at it. Drink, shout, chant, cheer, scream, hoot, holler, and maybe even lose an article of clothing or two.
When you are attempting to gain support, though, know your audience and stop making it about you.