Okay, from the 1 May nightly you will be able to set the consistent read option at the connection level, using a new "Consistent Read" (note the space) connection string option, e.g.:
Access Key=...;Secret Access Key=...;Consistent Read=True
Consistent Read may be true or false, and defaults to false (i.e. "eventually consistent" reads) if omitted. It can be overridden on a per-query basis using Query.ProviderOptions: the per-query option is now nullable, with a null indicating "use the setting from the connection string" (as if you hadn't set ProviderOptions at all), and a non-null value overriding the setting from the connection string.
The new build will be available from about 1500 GMT.