The length of time such trailer shall be permitted to remain shall be six months with one three-month extension. No further extensions are permitted and it shall be mandatory that the trailer be removed at the end of the time permitted. If the trailer remains in violation for more than 10 days, the Village Board or its representative may, after notifying the owner of said trailer in person or by letter, return receipt requested, cause the trailer to be removed. The expense of such removal and any storage charges resulting shall be paid by the owner of the trailer, and, if said cost is not paid within 10 days, the Village Board may advertise the public sale of the trailer in the official paper of the Village and sell to the highest bidder. The moneys realized from the sale shall be applied to any fines outstanding and to reimburse the Village for any expense incurred in moving and storing the trailer. If there shall be any excess, it shall be remitted to the former owner of the trailer.