MAF cleaner put in wrong?

Yep, they might have made the sensor go bad because cleaner can ruin the MAF sensor, or they left an intake tube off. Here is the set up for the MAF sensor so you can check it out and replace the sensor if needed. Please let us know what you find. Check out the images (below).

I noticed my traction light was on. Do you think it could've messed up some electrical stuff in the car because they sprayed the MAF cleaner into my car.

That may go back off, if they had the car in the air when doing the MAF cleaning it will create a trouble code with the traction control. You can try to reset the system if you disconnect the battery overnight. If not let's run the codes to see what comes up.

This guide can help:

https://www.2carpros.com/articles/anti-lock-system-testing-and-repair-abs

This is the same for the ABS system. Please let me know.