§ 71.004  MINIMUM SPEED REGULATION.
   No person shall drive a motor vehicle at such a slow speed as to impede or block the normal and regular movement of traffic, except when reduced speed is necessary for safe operation of his or her vehicle or in compliance with law.
(ILCS Ch. 625, Act 5, § 11-606(a))  (1999 Code, § 71.004)  Penalty, see § 71.999