Idea: If you are on someone's home street or in there home, the "host's" lil dot on the mini map is in a different color (maybe a nice blue?). That way if you are visiting (1) you know the "host" is there and (2) you can easily come up and greet/thank/whatever them.*
Perhaps the same could be done in part spaces for whoever initiated the party pack.
*"Slash whatevering someone should usually be done in private between two consenting Glitchen.