That doesn't sound too bad timing wise.
So there's no burn ban?
The only time I've actually heard of anyone getting a ticket for no parking permit was during spring break where there is a lot of stupidness going on and police presence is high, would basically slip a ticket under the wiper of someone who had parked and was walking down the beach. As far as fires and stuff though use common sense and you'll be fine, don't go too big, have some water on stand by and keep the dirt you dig up close so you can throw it back over the hole after you're done and leave the beach as you left it. Also side note glass bottles aren't allowed on the beach, have seen many people get ticketed for that.
I like to get really drunk at an in town bar then go to some random persons house on Shoreline Drive, strip buck ass nekid and shower in their garden hose before sleeping on the beach.
But that's just how I roll.