Haha. Yeah. They love to do that in the industrial space. You would only seek UL certification as a product if you were actually selling them as a single device.

Yeah….no. It’s assembled from off the shelf UL listed components in a code compliant way. Box, outlet, 1/2” npt cord pass through, regular NEMA 5-15 plug. Grounded the box. There’s nothing to worry about there.

Besides the tire cost, why are you getting an alignment every time you buy tires? Are they actually identifying an alignment issue or are you just getting up sold? If the old tires don't have any weird or uneven wear and the car drives straight, it is very unlikely you need an alignment.