You can do a lot while at this stop, fill up, eat, get a massage or simply make do with a park & grab. Nothing too complicated, you are looking for a micro size container (small pill bottle) just hanging around waiting to be found, check the clue though, its not that obvious. Remember to bring your own writing tool.
Take care, use stealth when retrieving, as this is a car park for the surrounding businesses with a fair bit of customer movement and of course the ever present "team muggles".