I'll start by assuming that the lottery sales aren't significant enough to worry about the business being ineligible. Since this business is only adding a line of business in a separate location, it's still the same customer, and the exemption should extend to all of its locations. I don't believe you have any work to do with respect to the exemption other than satisfy yourself that the business has the requisite licenses to operate the new "division."
Of course the new line of business is one that may cause you to increase your due diligence for things like MSB activity, and it will bring a new type of cash flow that won't look like the restaurant business. Those are things you will need to adjust to, but I don't think they affect the exemption.
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John S. Burnett
BankersOnline.com
Fighting for Compliance since 1976
Bankers' Threads User #8