I feel like camping is a bane in prisonbreak servers as much as anyone but more rules would seem ineffective at best. There is a rule for CT's to warn the prisoners who have just pistols, yet people still do it. The CT's can't plant guns but some say they just dropped it. Just think, if there's CT's who still can't manage to open cells, would you think most CT's would just walk out?
It's an annoyance since the beginning, but that's prison break. And what happens if a CT doesn't follow it when there's no admins? Simply, the same thing.