At around 7:45 a.m. Co.1 was dispatched to Constitution Blvd for the reported 1 car rollover.  Engine 2 & Squad 5 arrived to find 1 car on its side with the occupant still inside. The driver had lost control due to the slippery conditions. Crews assisted the driver out through the passenger door and returned to service a short time after. Conditions will only worsen as the day progresses so please drive slow or stay off the roads.