ORV in Nauset/Chatham

[Bonefish]

Does have a permit here? I have one and after reading the guidlines it is difficult to understand. My question is this.

I do not have a self contained vehicle. Self contained vehicles can stay out for a maximum of 72 hours before they have to come off the beach.

The regular permits allow you to be on the beach between 8:00am and 11:00 pm (unless actively fishing) and when you come off you need to stay off for at least 6 hours.

If I go out there and fish for three days and someone is constantly fishing is there a time limit? If I come of once a day but was actively fishing what are the rules? I'm thinking I should just risk that they won't mind. Does anyone know how strictly they enforce time on the beach?

Thanks