Heck yeah, I'd complain! For two reasons: 1) If I did agree with their cause, they are giving ME a bad name and it definitely is not winning opposition over 2) I wouldn't lie in the streets because I don't want to block emergency vehicles, mainly. Plus, it also doesn't win to my cause anybody trying to get to work. If anything, it turns them off.

Just doesn't seem like a good way to get your point across. And if they were doing it for a cause I agreed with I'd still disagree big-time.