R.I. Gen. Laws § 39-12.1-7: Thirty (30) day waiting period.

Any certificated tower in possession of any vehicle subject to a possessory lien for a period in excess of thirty (30) consecutive days, and not having been compensated in accordance with its published tariff, is authorized to give notice and proceed to foreclosure as provided in §§ 39-12.1-8 and 39-12.1-9.