Xbee interfearance

[Schnabel]

Hello All,
I am working on an individual project and a question popped into my head. Should said project appear at an FRC event and it was using the xbee pro 900 to communicate with its controller, what kind a havoc could be caused to the wifi radios on the robots? The thing I was looking at was that the xbee operates on the 900mHz band while the wifi radios operate on the 2.4 and 5 gHz bands. Would the robots be immune to the xbee, or would there be a potential for interference? I'm simply a computer programmer, so I don't know much about this type of stuff.
Thanks to any responses!
Schnabel