Parse Google calendar for addresses in appointments

Greetings from Arizona -

At the beginning of last year, I became a 1099 employee. As such, since tax time is approaching, I need to be able to claim my mileage with the IRS.

I found that the Distance Module that Sir DonkeyOte devised is excellent if you are able to simply data-enter the addresses, etc.
However, all my (hundreds of) customer appointments (including addresses) are stored in Google Calendar.

I've found several calendar programs (aislebyaisle, wincalendar, etc.), but they can cost $60 and up. I don't, however, need all the information.
Each appointment contains something like this :

Mr. Arnold S.
Wed, January 27, 2010, 9am – 11am
Where 1526 H Street Sacramento, CA 95814

If I follow the logic of the previous work, I imagine I would have to get a direct URL from Google calendar. A sample url would be something akin to
"http://www.google.com/calendar/embed?src=SOMEADDY%40MYADDRESS.COM&ctz=America/Sacramento&pvttk=47789cdf3142a6314cae9b34f39f4348".
However, this is only the address to the calendar, but not to the data itself.

Can anyone think of a way (perhaps using the above-mentioned module) to bring in just these parts of the calendar for a week, month or year?

Feedback would be appreciated.