I found a forum posting on Toyota Nation on installing a fork mount into the rail. I installed mine last night (see attached photos).
Yakima Fork mount is locking with key and I have a Kryptonite cable laced around the rear wheel. I may still use the rear cab on occasions. Unless you show up with some powertools nabbing this will be difficult.
@dexterdog - I know guy who got 5k through his homeowners insurance on a stolen bike. I've asked the question to my provider and they claimed they'd do the same.