Section 9--201. General Effectiveness of Security Agreement.
    (a) General  effectiveness.  Except  as  otherwise  provided  in  this
  chapter, a security  agreement  is  effective  according  to  its  terms
  between  the  parties, against purchasers of the collateral, and against
  creditors.
    (b) Applicable consumer laws and other law. A transaction  subject  to
  this article is subject to:
         (1) any applicable rule of law which establishes a different rule
             for consumers;
         (2) any other statute or regulation of this state which regulates
             the  rates,  charges,  agreements  and  practices  for loans,
             credit sales or other extensions of credit;
         (3) any consumer protection statute or regulation of this state.
    (c) Other applicable law controls. In case of  conflict  between  this
  article  and  a  rule  of  law,  statute,  or  regulation  described  in
  subsection (b), the  rule  of  law,  statute,  or  regulation  controls.
  Failure  to  comply with a statute or regulation described in subsection
  (b) has only the effect the statute or regulation specifies.
    (d) Further deference to other applicable law. This article does not:
         (1) validate  any  rate,  charge,  agreement,  or  practice  that
             violates  a  rule of law, statute, or regulation described in
             subsection (b); or
         (2) extend the application  of  the  rule  of  law,  statute,  or
             regulation to a transaction not otherwise subject to it.