You’re probably right. I also think August was supposed to carry back MM to the police station on his motorcycle (though that doesn’t explain how she got there so fast, because the clock had already struck 8). Hopefully, they’ll explain how she got back so fast next week. 
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"That’s how you know you’ve really got a home. When you leave it, there’s this feeling that you can’t shake. You just miss it." Neal Cassidy