We should cut to the subtext here and stipulate: trained dog handling officers can cue their dogs to alert.
So the problem is, if you're on a traffic patrol and already have a drug dog (many do), then the following sequence remains blessed:
1. Make a reasonable traffic stop
2. Approach vehicle with drug dog
3. Cue dog to alert concurrent with traffic stop handling
4. Conduct car search based on cued alert
No delay has been added in this procedure, and by the letter of the opinion today, it looks like that search will hold up.