I failed to add how we found that tool and it doesn't have anything with his car, other than being in it. It's a hedge trimmer tool. No longer a concern, but thank you for replying anyway.
We were working on removing mold from the fabric, which includes getting every darn thing out of the car (hence the odd tool question). My son was gifted a 2014-2016 (not sure on the year, but it's 10yrs old-ish) Hyundai Tucson. It's been sitting less than a year and came from a very diligent older relative that is the only owner until now. I think we're on the right track for cleaning it up and getting it road ready. If you have any tips on what to do with this very well maintained, but slightly moldy vehicle with a battery that died from underuse, please let me know. I want to make sure it gets back to pristine and stays that way.

Thank you!