The ball joint could have been loosened by the alignment tech and not your fault. But as goes. It should have been checked and tightened by the tech whether you left it loose accidentally or he loosened it.

Wheel bearing can cause a vibration. Jack the car up and try to wiggle the wheel. That works if they are really bad. Otherwise you need to pull the wheel and try moving the hub up and down. With a way to see it.

What kind of vibration to you have? Difference parts cause different vibrations at different times.