This is good but I wish he used something that inflicts actual monetary damage, like paint or something. Glitter is fun and all but is relatively easy to clean up. Paint is usually impossible to take off from fabric and would cost quite a bit if it were to explode in these assholes' cars for example. Would teach them a good lesson.
I guess the main problem is that police can't / won't respond to petty theft, so common people are pretty defenseless against these assholes.