Based on how compatible it thinks you and your date are it could also include things in the order that it thinks you should use against/with each other... from nerf guns to condoms.
From the headline, I thought it was for credit card fraud! Order valuable, fenceable goods with a stolen credit card, and then use Uber to make sure you're at the random location when the goods arrive.
Ironically, if you add some social element to it, you will probably get more long-term users than apps like "Yo" did.
Probably need to filter locations so that you don't end up outside a prison and you could also pick the food joint based on the nearest restaurant that delivers to the random picnic area.
Stupidhackathon not withstanding, this idea isn't bad at all.
Maybe someone can make a partner app that buys you an outfit of random items and tees up a random date. Then live stream each meet up.