Welcome to the forum Paul, you'll find the members on here are a friendly and helpful bunch :)
Truthfully I've not seen any issues with the vag keyless system it seems to be Ford that is affected. For my keyless Ford I have a Faraday pouch which I bought off eBay for 79p and it came from China and it works a treat. A metal.tin does the job just as well.
Usually theives will break.ibto your home so in order to steal your keys. (Keyless Fords excluded). With any form of steering locks they will slow down the thief and will make more noise. This therefore acts more of a deterrent, ideally meaning the thief will target a more venerable car.
Hope I've helped :)
Cheers
Steve