This is actually not true. I just had a conversation with the Intern in charge of this at the Spokane office of the District Attorney (or whomever). They CAN ticket the vehicle. They follow up with a "request to appear" notice, which you can do on your appointed court date, or just pay the $50. If you do not pay, it MAY lead to the swearing out of a bench warrant on your ass. This may mean nothing, however, I have too much at stake to risk these complications.
If there is no amount, just wait and see. You will most probably be contacted.
GReg W