I'd agree with the OP: I'm not sure if I should be angry at how rude and disrespectful (Not to mention bigoted) this girl is being towards an adult, or sad over the fact that she's almost certainly acting that way due to being corrupted by bad influences (Bad parents, bad friends, watching 'Family Guy,' etc.). I'll need to pray for her.
How much you want to bet that after this happened, one of the DUmmies made a thread saying something like, "I'm so proud of my daughter, she totally nailed this stupid fundy she saw in the streets! That's my girl!"?