If a business believes you stole from them, do they have the right to go in your vehicle and take everything you own even items that I can prove wereu

The question

I was at a baseball card shop in Tacoma,WA when one of the employees asked me to come sit at a table where he then proceeded to position himself where I could not leave if I wanted to. The owner then came from the back and accused me of stealing baseball cards from the shop. After ten minutes of a clear attempt to intimidate me and presenting me with no option to leave of my own free will, they went into my car and took every single sports card that I owned, including quite a few that I bought on eBay and can prove that they were purchased there. Can they legally do that or are they coiting the same crime they are accusing me of?