Worst case scenario, you're still getting ticketed. I wouldn't risk it.
To minimize the risk:
*don't cast at a body of water with fish. Find a private reservoir, cesspool, swimming pool, drainage canal, or even a dry sump or field.
*don't cast around wildlife or people. Anything could be misconstrued as "disturbing wildlife".
*don't cast lures or sinkers. Use or make casting plugs. Pieces of dowel rod with an eye screw suffice.
*being a spray bottle of water. It supports your practice assertion, plus will help you cast in dry grass circumstances.
*follow surfgoose's advice on contact refs