If the lock is snug like this, there is no use trying to zip tie it out.
The padlock does not take much space to carry in your kit, but if somebody tries to get the bike, the bike will end up on the ground most likely. Lock with higher visibility is better in deterring people, but is a pain to pack.
Still, as Cal says, if there is a determination, the bike is gone.
In Czech guys cement anchors in the garage floors and lock bikes to it and still bikes disappear - the russsian and ukraine markets are hungry