FTA: But committees are not without options. Once it's invoked, a committee may reschedule its meeting to take place either before or after the Senate is in session, "early in the morning before the Senate has convened or after it has adjourned," according to the Congressional Research Service. Another possibility is that the Senate may go into recess, so the committee to meet during the hours that would otherwise be restricted by the rule.
Congressional Research Service Full Doc from April 2018 - almost like someone expected the two hour rule to be invoked. Include history of the rule and examples of when the rule was invoked from 1985 through 2017 (starting on page 9 of 18)