Vehicle limit refers to the speed limit restriction for certain vehicle pursuant to VC 22406... For all intents and purposes, it doesn't look like the lower limit applies to the type of heicle you were driving... However, as far as I know, the citation is filed by using the alleged speed or "Speed Approx" and the "P.F./Max speed" entries... SO I'm not so sure that he gave you the break he mentioned.
Only question I would have is this: are you sure it says 22349(a) and not 22349(b)???

