Combining QR Codes with Geo Location
You can take a look at http://qrd.by. It looks like a service that could cover your needs. They provide geotagging services combined with qr codes under http://qrd.by/geotag/create.
Hth Steve
I found this online utility - QR Code Geographic Generator
According to the site you can
Use the geographic QR code generator to create QR codes with your embedded co-ordinates. The geographic co-ordinates are stored and when scanned will redirect to a static mobile google map of your location.
Either enter your latitude and logitude co-ordinates, type in an address, or place a marker on the map below. Click the 'Create Map QR Code' button to generate the geographic QR code.