Space is limited. Plus ones will have to be approved by the bride and groom. If there is a plus one that is added without permission, the bride and groom will remove the plus one.
The short answer is no; however, the bride and groom will appreciate any and all gifts. Contributing to their house fund is more than enough should you feel inclined to bring a gift.
On the day of the wedding there are two open lots across the street from the venue. Once those are full it will be street parking in the surrounding neighborhood. It is highly recommended to carpool to ensure a parking spot is available.
During the ceremony itself the bride and groom request that no phones/cameras are out. There will be a photographer there to capture the event. After the ceremony, photos will be allowed for the rest of the evening. The couple asks that you allow the photographer to take photos of important moments and please be mindful of her instructions.