Reasonable expectation to privacy.

[shockwave rider]

Not Hawaii specific but these may give you a stating place for your research:

http://communications-media.lawyers.com/...perty.html

http://www.ehow.com/list_6809688_laws-ag...awaii.html

This was written for photojournalists but is very thorough:

http://www.rcfp.org/rcfp/orders/docs/PHOTOG.pdf

I hope you can resolve this, that would really suck!