I think it's too early to tell, certainly with the 0.05 sanctions, but I'll give you two comparison jurisdictions.
If you look at Quebec, their conviction rate is 41%. This is a jurisdiction that is more likely than any other to enforce the 0.08 limit. They plead fewer cases, they have huge impaired driving and repeat offender caseloads, and their conviction rate is 41%. You can see that they're trying to do what the law intends and they're struggling to manage that.
If you look at the Atlantic region--and we've grouped the provinces together--they have a conviction rate of 75%. They have 90% of their cases at 0.120 and over. They also have smaller caseloads. For example, in the Atlantic region the average crown would have an impaired driving caseload of 100, whereas in Quebec they would have 150.
So we see that the jurisdictions that appear to be doing really well aren't. Jurisdictions like Quebec and Ontario that are trying to enforce the lower BAC at 0.08 and not plea cases and resolve them, as was intended, are struggling with much lower conviction rates.