Route to contact or location
This workflow calculates the route from the current location to a contact from your address book, or a specified location with Google Maps. The scripts are written in python and use the pre-installed objective-c bridge pyobjc to search the address book and determine the current location with CoreLocation. Because of this, OS X will display messages that ask for the permission to use CoreLocation and AddressBook.
The scripts use the shipped python version and the nice alfred module by nikipore (included). Because of the usage of OS X APIs there are requirements for the OS X version. I developed and tested the workflow on 10.8.4, but perhaps older versions are also working (feedback?).
Simply type "route" followed by the first or last name of a contact and choose the right one from the list. You can also just type an address to which you want the route to be calculated.