R.I. Gen. Laws § 31-12-15: Powers of landowners preserved.

Nothing in chapters 1 — 27 of this title shall be construed to prevent the owner of real property used by the public for purposes of vehicular travel by permission of the owner and not as matter of right, from prohibiting such use, or from requiring other or different or additional conditions than those specified in chapters 12 — 27 of this title, or otherwise regulating such use as may seem best to the owner.