I'd say that you're lucky to be paid for the first game at all.
While a traffic jam might be out of your control, you can plan to leave early enough that you largely eliminate the probability of being materially impacted by it enough to matter.
I always target arriving at a gym 1 hour before game time. I plan for extra traffic on distant games (adding 10-20 minutes over what google says) such that if goes well, I might get there even 75 or more minutes before. If it is a new school in an unfamiliar area, I even add more time. I can drive very quickly, but planning shortcutting a trip time during rush hour to an unfamiliar area is just not a good idea.
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