No warnings here either. Our camp and all others around us prosecute to the fullest extent of the law for every charge that can be leveled. Bright yellow and orange posters all up and down the mountain road. No excuses. We write down any license number we see parked along the road, and cross-check with all camps. We busted a few people by doing this.
Glad you got him identified and charged. If he's already in hot water for assault and out on bond, trespassing will only add to his list of laws broken. It paints him as chronic offender - hopefully judge tightens the screws on him with a record of several charges against him. Obviously he's not an " oops .... honest mistake " guy.