The outdoor range near me is a good one, its not even opened without an RO present, and when the range is called cold, NO ONE including the RO touches an uncased gun. You can carry gun cases from your car to the shooting bench but you can't open them (or unholster a worn pistol) until the range is called HOT.
The RO calls the range cold, or hot, NO ONE else, and its ALL the shooting lanes, together. There is no "one lane hot" when the range is COLD. Period.
Break any safety or range rule and you are ejected. No excuses, no argument, no exceptions.
Its really easy to follow the rules, and anyone who can't or won't isn't welcome to shoot there.