So I have a Toyota Corolla 2004, and 117000 miles. Just this Saturday (2 days past) I got an oil change and a tire rotation (at a Valvoline drive through service station). This morning, once I was going 50-60 miles an hour on the highway, the steering wheel began to shake (left and right, fast). The vibrations come in waves, where maintaining a constant speed, it will shake, then the shaking will smooth out, and then it will start to shake again, in ~30 second cycles.
I’m assuming that this problem has something to do with my tire rotation, since it’s the first one I did in recent memory, (Thought they do this as part of where I got my care inspected?)
What should I do?