After attempting to register on Friday, I received a generic e-mail from EA inviting me to call to get registered. Did so immediately, and for the next three days. No luck, and no return calls.
Called EA this morning again, only to find that Simon, the event organizer, is still out. Should be back tomorrow. Word is that two rides are organized, both of which are full. But the person I spoke to suggested that it may still be possible to join. Fingers crossed.