?????? This isn't a glitch its supposed to do that. When you go near the perk machine it says it needs a source of power (just like some of the doors on the map). You put your turbine down and it powers said perk machine. Also if you get 2 perks before switching the power on you get an achievement (well you do on Xbox anyway, not sure about PS3).
Defo not a glitch
Not to be rude but you should really search before posting, this was known all of a month after the game came out. Nice try though. and you want to pick up your turbine right around when the person burps. Dont claim credit though..search man.