Pinocchio is only open first thing in the morning. You can enter through the parking garage at that time but be directed through to Pinocchio. Last summer this is what we did:
We stayed at Embassy Suites South on Harbor. Turn right on Harbor, right on Chapman, right on West. West turns into
Disneyland Dr. First thing in the moring, the Pinocchio entrance was open. So just turn left on Magic Way and go in to park.
If that Pinocchio lot is open, there will be an arrow on the sign on Disneyland Drive pointing that way (left) for parking. If that entrance is not open, the arrow on the sign will only point straight ahead and then you have to make a u turn to enter the parking garage.
When we left Pinocchio lot we turned left on Magic way, right on Disneyland Dr. Left on Orangewood, right on Harbor, then right into the hotel.
Now with all the construction going on and changes to parking I don't know if that still works. I would think so but not sure. When we came once in the afternoon we had to go through the parking garage because that entrance is closed.