The latest version of this bill does not allow drivers to cross a double yellow line, and it does not specify a 15 mph limit to pass a biker when a three foot distance cannot be maintained. Those were the governor's primary objections to previous proposals, and now he has signed the bill.
Here's a link to the text of the bill:
I hope this bill has some publicity effect as a reminder to motorists that they need to give bikers some room. That's about all I'm expecting, so I will continue to ride with the attitude that many motorists consider bikers to be a nuisance at best or scofflaws at worst.