Personally I think the current evolution of events should remain in place. Otherwise I feel it's slightly hard to justify where all these Zoner cruiser popped up from if Liberty has always had an issue with foreign capital ships in their space. These sorts of minor escalations on each side better helps flush out the final antagonistic result that is going to be the battle itself and the consequences resulting therein.
Taking the First Fleet as an example. I very much enjoyed watching them subtlety ratchet up the consequences for the indy zoners, first a fine with a request to leave, then ending with a bounty and a call for further support from other LibNav assets