No trail is planned that will directly link the parking lot to the existing trail. You have to ride a short ways up a dirt road. It's easy to pick up more speed than you intend if you're riding a bike down that section, and there's a lot of soft sand where the new gate is. Watch your speed if you're coming out that way.
Speaking of watching your speed, make sure you do so when leaving the parking lot. You're driving through residential area on Collister Drive, which is steep and it's easy to pick up momentum if you're coasting.