A good tower/ground "team" have these issues worked out before they happen, (exit at mike six start south on alpha or hold short of bravo). It's also good for the pilot to have some situational awareness as to whats moving around the airport, take a quick glance on short final for any potential conflicts or threats.
I've been chided as well for entering a taxiway without clearance after exiting the runway. Some tribal knowledge helps because some prefer you head towards the gate and others want you stopped immediately.