You can defend against the lack of a Forest Park sticker because you live elsewhere. Your expired plate registration citation should be brought up to date by you before you go to court.
As to the question of the private strip mall parking, the officer can issue citations whereever the violation is observed, even in your own driveway.
You can miss defenses and say the wrong things if you are not represented by an advocate as your attorney.
You might find my Legal Guide helpful "How to Choose A Lawyer For You"
You might find my Legal Guide helpful " What Do I Tell My Lawyer"
Good luck to you.
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yes they can issue both tickets. yes they can do it in a private parking lot if there is public access. Expired registration is a petty offense. No current sticker is an ordinance violation. If these tickets llok like parking tickets you need to go to the FPPD to get a court date or you can just pay the fine.
You neeed to get the plates registered right away.