OMG I know this is old, but I just saw this and similar happened to me this week!!!!! I changed to my husband's car insurance (Geico) after I got married in May. My old insurance was canceled and Geico started on the same day. I got a letter in the mail (luckily my plates weren't taken like yours) saying my registration was suspended because I haven't had insurance!! Which obviously is not the case. I sent in my policy and am hoping that is enough because I do NOT want to pay 200 dollars for not breaking any law.