GSL Slip Renters If you have a trailer in the parking lot or in one of the two storage lots and you do not have a contract to store it here, it must be removed by the end of Monday. Construction begins in the unsecured lot and I have to make room to temporarily move trailers for those who have contracts. If there are trailers that are still here on Tuesday and you do not already have a contract, the trailer will be towed. Sorry, no exceptions.