Repeat notifications is one of the features that really makes Textra awesome, but when I'm driving, this is a huge annoyance.

When displaying the repeating notification, you should offer a series of "Snooze" options that would postpone the repeating notifications for a set number of minutes (ex: Snooze 30 minutes, Snooze 1 hour).

Clicking would postpone the repeats for any messages for that amount of time.