The Musjid has a parking area which is also Waqf property.

Answer

The Musjid premises is Waqf. The parking area is the right of all musallis. The musalli who arrives first has the prior right to a parking lot. No area of the Waqf premises of the Musjid may be reserved for anyone, be he the Imaam or the Ameerul Mu'mineen or the president of the country. Just as a spot inside the Musjid may not be reserved for the Imaam, so too a parking bay may not be reserved for the Imaam. Anyone who arrives first has the right to park in the vacant parking bay. The reservation of the parking bay for the Imaam is not permissible.