FAA Regulation

No, the other people in the park are not on notice.  Yes, as long as the park is not busy enough that it would be considered an open-air assembly of human beings.

Fly as a recreational flyer until you pass the recurrent training online with the FAA.  Continue flying as a Remote Pilot, there is a 30-day window to take the recurrent. Fly ...

Over suburban areas. Over a parade or other social events. Over a sparsely populated area.  

Remote Pilot in Command. Commercial Balloon pilot. Designated Pilot Examiner.

ensure that the human beings who are not participating in the operation are under a covered structure or inside a non-moving vehicle. ensure the sUAS is equipped with a parachute make sure the area is closed or restricted-access.

must not cause injury equivalent to 25 foot-pounds of kinetic energy upon impact. be operated in accordance with the operating limitations specified in the approved Flight Manual. be 0.55 pounds or ...

With the controlling agency’s authorization.   Regulations do not allow this. When flying on airways with an ATC clearance.

Denial of application for Remote Pilot, waivers, or suspension/revocation, or a civil penalty.  Jail time of up to 1 year A required checkride with the FAA