41 C.F.R. § 302-6.111 May I and/or my immediate family occupy temporary quarters longer than the period for which I am authorized to claim actual TQSE reimbursement?
Title 41 - Public Contracts and Property Management
Yes, but you will not be reimbursed for any of the expenses you incur during the unauthorized period.
Title 41: Public Contracts and Property Management
PART 302–6—ALLOWANCE FOR TEMPORARY QUARTERS SUBSISTENCE EXPENSES
Subpart B—Actual TQSE Method of Reimbursement
§ 302-6.111 May I and/or my immediate family occupy temporary quarters longer than the period for which I am authorized to claim actual TQSE reimbursement?

