He was nailed for the first statute but not the second one.What is stated is that it is considered an "off road" vechicle and state law applies.
Florida Statute:
s. 316.1995 – Driving upon Sidewalk or Bicycle Path
No person shall drive any vehicle other than by human power upon a bicycle path, sidewalk, or sidewalk area, except upon a permanent or duly authorized temporary driveway. A violation of this section is a noncriminal traffic infraction, punishable as a moving violation as provided in chapter 318.
s. 322.01 Definitions – As used in this chapter:
(27) “Motor vehicle” means any self-propelled vehicle …. excluding vehicles moved solely by human power, motorized wheelchairs, and motorized bicycles as defined in s. 316.003
http://flbikelaw.org/2011/06/motorized-bicycles-5/