There is a circle drive entrance which is at the same altitude as the church, which you can find on Apple Maps in the satellite view. The parking lot below (marked P below) is probably 6 feet lower altitude so this newer circle-drive is important for handicapped accessibility.

There is a row of parking here which is missing from the map. Please refer to the Apple satellite map of this area to see how it's actually arranged. There is both handicapped parking to the left of this icon, and a row of non-handicapped parking about where the note icon is.