Three Years Probation for Turtle Distribution?

The sale of turtles with shells measuring less than four inches has been illegal since 1975, but what happens if you break that law and get caught?  Not much.  One Florida man was recently prosecuted for doing just that and impersonating a federal agent (in a threatening letter he sent one of his competitors), yet he got off with three years probation.  There's no mention of any fines.  Do they really think his attorney's bill and further inconveniences are enough of a punishment?