Turn off the warnings. Alarms and warnings are there for a reason. By disabling them, you're damaging the security perimeter of your network. Allow users on the firewall system. Firewalls should be as simple as possible.
Users add complexity.
Every user account is a potential avenue of attack. Every user is a potential attacker. Every keystroke of every user has the potential for opening a breach in the firewall through user error. Allow a lot of people to administer the firewall. Too many cooks can spoil the broth.