I recommend that you do not use this. Traveline provide an official API with up to 180,000 free requests in a six month period.
No they would not. They will give the data to anyone. They didn't even want my name before they gave me test access of up to 1000 API hits a day (which would be sufficient for the personal usage you describe). The data itself is provided under the open government licence which allows you to do pretty much anything you want with it. As far as I can tell, there are no restrictions beyond this on what applications are allowed to use the API. Really, you should email them and ask them. I got a very quick response.