You will probably be able to buy Heinz Beans there (UK style) probably in the Gourmet section of the grocery store. When I lived there (In Washington DC over 12 years ago) I could get them. In an area like Orlando, where 40% of the tourists are brits I imagine you will find you are catered for, might be a bit more expensive though.
However, when I lived there I used to buy US Heinz beans with bacon. Its not bacon as we know it but a bit of bacon fat, which gives flavour.
Kazd