She had put up cardboard around her car windows but the light from her computer could be seen through the back window.
The whole story sounds of 'oh my God look, there's some technology we can talk about!' hype.
I would challenge the average cop to prove I was nicking someone's Wi-Fi connection. Unless the woman plain stupidly admitted to it...
I bet the truth is that the driver was cautioned for 'Browning Out' her car windows and the excuse "the sun glare was getting on my tits" just wasn't good enough. Still nothing like a good story hey?