shuttle service instead of preferred parking space

Our LEED CI project is inside of a LEED CS retrofit. For SS3.3 my client falls under the CASE 1. The scope of LEED CS also includes an addition that works as a big garage (which is not within the scope of LEED CI), once retrofitted building does not provide any parking. We don't know the reason LEED CS project has not applied for SS4.4, once the parking spaces provided (addition) do not exceed the zoning requirements and for that reason our LEED CI client wants to achieve this credit. However, once the CS building has not provided preferred parking spaces in the garage building, my LEED CI client can't designate this spaces by himself. So, he is providing shuttle service/van pool for more than 5% of his FTE to arrive and leave work, everyday. My questions are: 1. I am considering to apply for CASE 1-Option 1, although the retrofitted building (LEED CI scope) does not provide any parking for tenants, we still have the garage building (not LEED CI scope). We think the best thing to do is to consider these parking spaces, once tenants will use it and this condition will appear on lease agreement. Is that correct? Or is it possible to apply for Option 2 'No parking is provided'? 2. If I can't designate preferred parking equivalent for my client's FTE is it possible to replace it by providing van pool/shuttle service for more than 5% of occupants and meet the credit requirements?