I'm not buying it. IP is not limited to code. "the team decides". That is not what happened. You decided. The booth presence and the tickets are as much hi

I'm not buying it. IP is not limited to code. "the team decides". That is not what happened. You decided. The booth presence and the tickets are as much his as they are yours. If you decide to take them (and use them, give them away, or anything else) you are taking part of something that he has a right to. Again, I do not justify his response (as he is not here for me to address), but what should he have done in light of someone denying him access to something that is rightfully his? Just because you did not do your due diligence (because you didn't know that you should, or were inexperienced in hackathons, or whatever...) and you turned out to not like working with the other person, does not negate the work or award that the team accomplished together. Regret does not change anything.