Thats true providing the two grand lodges are currently talking to each other you should be able to turn up be proved by someone and sit in the lodge, even easier if you were with a current member of that lodge that will vouch for you. You Lodge Sec should be able to get comunications from the UK helping with any differences in things.
If anyone is interested in talking more might be sensible to exhange email addresses via the PM here enabling us to talk in more privacy.