The grid line is designed for our company. Is it illegal for our company's car to go out and be blocked on the grid?

It is expressly stipulated that parking is not allowed on the grid line. Because of the actual situation and needs of your unit, the traffic management department drew a grid line on the road in front of your unit. Since it is smoked, it is valid for all vehicles, including your company's car. If you go out and stop on the grid line because of traffic jam, it is also a traffic violation. If you want to deal with violations, you must apply and let the traffic management department mark "except the unit car" with traffic signs or markings, but you should weigh the feasibility before applying to avoid being laughed at.