ticket was issued by jacksonville sheriffs office
Of course I don't have an answer for who or why. I am surprised that any officer would write a citation that far from the building, and of course I don't know just what kind of officer it was. Sheriffs sometimes are able to do funny things. It's not unusual for a sheriff to have "deputies" who are only authorized to work very specialized jobs and no other law enforcement duties. I have personally known of "guards" working for private companies who were deputized by the sheriff to do the job.
If you want valid answers, you would need to ask the sheriff (or at least someone in the sheriff's office) or the local judge. In Texas, if it were a citation issued by a deputy sheriff, it would go to Justice of the Peace court.
And, of course, while relatively infrequent, it
is possible (not likely, but possible) the officer simply did something he was not supposed to do. As a lieutenant, I once had a patrolman who issued a speeding ticket on a shopping center parking lot. Yep, a young hotrodder being a real fool,
but . . . in Dallas at least, the police had no authority to enforce a speed limit on private property. So I ordered the officer to go to the violator's home and retrieve that citation and apologize for having issued it. His ego wouldn't allow that, so he resigned instead and I considered it good riddance.

And his sergeant had to go retrieve the citation.
