Ok, I posted 0.2, which was a total rewrite. Since the GasBuddy HTML code can be complex to parse (since the ID is useless), I decided to use regular expressions. What does this mean for you? Not much, except that the script won't run into problems if the site code changes, or the user who submitted the gasprice mistyped the address (since you can use regular expressions in the actual variables as well).
I still need to add the timestamp, but that will be for later today or so. To get this script going, go to the gasbuddy site, search for your local gas station, and try to narrow down the list as much as you can (by specifying the gas station area & type of station i.e. Mobil). This will save some resources when processing this data.
Let me know if you run into problems, I have it up and running without any problems. Instructions will be updated soon, since I am still working on the code & features.