Ah, sounds like you might want to do some experimenting first then - lucky that that particular film is cheap Shoot a test roll of exposures just like the ones that matter (similar brightness range), cut it into 4 pieces and try 4 different developments on it, e.g. 24 minutes and 30 minutes, agitation every 2 minutes and every 5 minutes. Once you see where those 4 options get you in terms of shadow detail and highlight density, you'll hopefully know which way to proceed (you might decide on a different time and agitation scheme altogether!), do another test development of a whole roll (because that may behave differently than a quarter roll) at your chosen time & agitation scheme and if that's good, go ahead and soup the ones that matter.

The reason agitation affects the highlights with Rodinal so much is that when highly diluted, the developer exhausts at the highlights quite rapidly and slows developing there, while the shadows keep on developing. When you agitate, it brings fresh developer to the highlight regions and they start developing more rapidly again - the amount of highlight density is therefore mostly controlled by the number of agitations. A nice (usually) side-effect of this is the edge-effects you get, which is sort of like unsharp-mask: the highlight regions retard development in the edges of the shadow regions and vice versa, which means the edges look very sharp.

Assuming that you shot it in 35mm, if you use Rodinal, expect the result to be quite grainy.