Anything is within walking distance if you're willing to walk...

Anyway here's where it is:

https://maps.app.goo.gl/YZKPXp7LSjc5jPot5

Turn on satellite view and you can see it is on the edge of the long stay parking. I dunno if you're realistically going to save a lot of time unless your parking space is right at the back of the long stay car park. Worth it if it's free! I assume it's overpriced though.