I didn't know you could get spiny stars at such a short exposure. I mean, it's long, but, you know, not hours long. I thought to get spiny stars and such you needed at least 1 hour of exposure. Huh.

Also, was this at night night? Or just sundown night?

Stars move fifteen degrees an hour so this thirty minute exposure should show about seven degrees of movement of the stars, roughly, around Polaris.
The star spirals look about right.
With a long enough lens, you can see star movement even with a thirty second exposure.
If the time stamp is correct, then this was shot around 10pm. The moon, ground lights, and clouds play havoc with long exposures.
You'd need to be in the middle of one of the Great Lakes for real darkness but then you'd be faced with an unsteady boat and your star trails would be all wobbly. Still might look cool, though.
If you are ever in central Kansas on a clear night, aim your camera up, press the button, and see what happens.

It's not far from Lake Superior in the UP of Michigan. Very dark up there, but the full moon and incoming cloud cover turned it pretty bright.

It's probably an hour or so after sundown, if I remember right? The moon was full and made it a very bright night. There's also a lot of light that reflected off the cloud cover that rolled in during the exposure.