An opt-out starts a clock you have to beat

Days, from the rule text: the federal deadline to honor a revocation, and Florida's window after a STOP reply before a texting suit can be filed

Deadlines tied to an opt-out request Federal rules require honoring a revocation within ten business days. In Florida, a sender has 15 days after a STOP reply to stop texting before a suit over texts may be filed. Federal: honor the revocation · ten business days Federal: honor the revocation ten business days Florida: after a STOP reply · 15 days Florida: after a STOP reply 15 days

Source: 47 CFR 64.1200(a)(10); Florida Statutes 501.059