(1) The security interest is enforceable, even if section 4-9-203 (b)(3) has not been satisfied;
(2) Filing is not required to perfect the security interest;
(3) The rights of the secured party after default by the debtor are governed by article 2 or 2.5 of this title; and
(4) The security interest has priority over a conflicting security interest created by the debtor.