HybridAuth - handling expired provider tokens during authentication

Question

The HybridAuth documentation as many have noted is extremely lacking, so I'm having a hard time finding the proper method for dealing with Expired Tokens during an attempted Auth sequence. My code is currently:

try {

    $provider = /* Provider Object in our system */

    // Initialize HybridAuth
    $client = new Hybrid_Auth($provider->get_config());

    // try to authenticate with the selected provider
    $adapter = $client->authenticate( $provider->name );

    // then grab the user profile
    /* @var $user_profile Hybrid_User_Profile */
    $user_profile = $adapter->getUserProfile();

} catch( Exception $e ) {

    $user_profile = NULL;
    $adapter->logout();

}

If the session is still active at our end for whatever reason, but the token has expired at the provider, the line $user_profile = $adapter->getUserProfile(); just prior to the catch is throwing an exception which is expected (although the error messages are missing some very important info and are somewhat misleading).

I was able to find in another thread (which I'm sorry I can't find, please feel free to edit in a link if you know of an example) that I need to instruct HybridAuth to forget the token info by using the $adapter->logout(); method.

So what now? Am I supposed to redirect, if so, what address? What's the best practice here?

Any insights would be gratefully appreciated!