I always assumed that OL simply makes it so the locked ship couldn't touch dice, but can do things like spending tokens and such.
Nope. Using tokens (such as evades) is considered a dice modification and there negated by OL's ability. If you're attacking/attacked by OL and he's got you locked on, you're entirely dependent on the dice roll that comes out of your hand. You have no option of changing it after that.
Guess I phrased my statement in a way that ment I thought the locked ship could add or change results from dice, which I agree you totally can't do, hence me saying the locked ship can't touch dice.