On a regular day the controller could see this, and ask what is going on. At a small GA airport with training ops the controller is likely used to people pulling out onto the runway and taking their god damn time. The FAA actually advises wait times of as long as 2 minutes for wake turbulence, and that’s something I’ve done. Just sit there on the end of a runway.
Things get a little different, in practice, at busy commercial airports, but the rules are the same.