Issuance of permit and/or revocation of same. Upon the hearing, the Board of Trustees may, in the reasonable exercise of its discretion, grant or refuse such application and, if such application be granted, shall issue a permit for the construction, maintenance and operation of such parking field, for a term not exceeding one year. In the event that such parking field is not constructed and maintained within reasonably substantial compliance with the plans and specifications filed, the Board of Trustees may, upon its own motion and upon notice to the owner of such land, the proprietor of said parking field (if such proprietor be not the owner), and after due hearing, revoke such special permit. In the event of such revocation, the owner of such parking space and the occupant of such parcel of land (if the occupant be not the owner) shall forthwith discontinue and all other persons shall forthwith cease using such parcel of land for the parking of automobiles or other vehicles, and any continuation of parking automobiles or other vehicles on such parcel of land shall be deemed a violation of this chapter.