Join Date: Aug 2011
Location: Barcelona, London, on a plane
Programs: IB+ Gold, TK E+, Hyatt Globalist, Marriott LTP, IHG Diamond
Posts: 14,178
There are no "rules" for late checkout. Almost any IHG hotel can reject your request for a late check-out.
In this case, the front desk agent made up an excuse that didn't sound right. But it could have been any other excuse...