Why a clear loading route can matter and why local requirements should be checked early.
If the vehicle has to park far from the entrance, carrying distances and often the required time increase. A suitable loading position can therefore matter.
Whether and how a temporary parking restriction can be set up depends on local rules and the specific street. Check authority, lead time and signage with the competent local body. Do not plan on a reserved space until it is actually permitted and organised.
Mention difficult parking, possible pedestrian zones or unusually long carrying distances in your enquiry.