In my opinion, there are two possible reasons.
First, the government probably does not think these guys are any kind of a threat to them. I mean, so what if there are some people out walking around when no one knows they're there? It's like the thing about the tree falling in the forest with no one around.
Your going to late for something (school,work etc.) And you have to hurry to get there in a restricted amount of time or you die