I found out this morning my license was suspended...the hard way

A cop busted a U turn on me and I figured it was just another BS stop for the seatbelts. Well I was right and the cop was a dick to me so I was a dick back to him within reason.

So he comes back and tells me I am driving under suspension and he is towing my car. I ask if I can park the car and have someone come drive it off for me since usually that is an option but he says no and calls the tow truck, we get into an argument about it and he threatens to arrest me so I gave him the key and go to get my stuff out the back of the car.

He hands me a sheet with the info I need to reclaim my vehicle so I stand there and read it before closing my trunk and he tells me he is going to arrest me if I don't walk away right now...WTF??

So I stood there for a bit reading it and told him I wanted to know the info before I walk off and I tell him I want to know the info on where its going and what I need to get it back. so we argue again and he calls backup but I left willingly and told them to go screw themselves.

*sigh*
I am trying to figure out how the hell my license got suspended, I paid all my tickets and took care of all the stuff required of me and never received a letter stating I was suspended...wtf??