In operating an authorized emergency vehicle the operator may:
(1) park or stand, irrespective of another provision of this subtitle;
(2) proceed past a red or stop signal or stop sign, after slowing as necessary for safe operation;
(3) exceed a maximum speed limit, except as provided by an ordinance adopted under § 545.365, as long as the operator does not endanger life or property; and
(4) disregard a regulation governing the direction of movement or turning in specified directions.