Car seats are not gate checked. Strollers can be since parents use them up until boarding but car seats are checked with the rest of your luggage.
Edit: I forgot to account for car seats that are part of a stroller... I imagine those would have to be gate checked as well. That's a special case though.
Having query logging enabled on a production database is bonkers. The duplicate deletes are too but query logging is intended for troubleshooting only. It kills performance.