my local gamestop is at is a local strip mall with segway mall "cops" and police frequently hang out there because a lot of teens walk around high
Good to know the cops have their priorities right. Harrassing innocent stoned people is way more important than investigating robberies, arson, vandalism, muders, raqes, assaults and catching drunk drivers / speeders.
What the [censored] kind of totalitarian country do you live in? I mean, I can understand if they stop you and call your parents - but if your parents say it's okay for you to be there then what's the problem?
At any rate OP, just go there and if any cop hassles you (which I doubt) just tell them exactly what you're there for. If you're in line for an open store I further doubt they will care. You have legit business to be there. And if you're white then it's even less likely you'll be hassled if that were even possible.