Well I guess roaming charges are getting a bit passe these days, but I could still see someone arguing they were never in Niagara Falls, or that they were on the American Side (normal rate) and not the Canadian Side (crazy rate.)
But in principal, I can see why a company would think any and all info they have might be useful in a dispute.
But in principal, I can see why a company would think any and all info they have might be useful in a dispute.