I frequently leave my show gear and other things in my car at airports around the country while I fly home on my days off between gigs. I lock up my gear inside my car with a bicycle cable to the car, to make it inconvenient for someone to steal, but that’s no guarantee.
I recently bought some Apple AirTag‘s and put one in my car, one in my suitcase and one in my show’s case. It gives me some peace of mind to be able to check in on them and to see that they are all still at the airport!
If you travel and leave your gear in your car, I really recommend having an Apple AirTag or something similar with your gear to keep an eye on them while you’re away!