A third person must accept or reject a power of attorney within a reasonable time. Four days, excluding Saturdays, Sundays, and legal holidays, are presumed to be a reasonable time for a financial institution or broker-dealer to accept or reject a power of attorney with respect to:
1. A banking transaction, if the power of attorney expressly contains authority to conduct banking transactions pursuant to Florida Statute Section 709.2208(1); or
2. An investment transaction, if the power of attorney expressly contains authority to conduct investment transactions pursuant to Florida Statute Section 709.2208(2).