I had AAA open one of our rental houses in town.
Renter "forgot" to leave us the keys. AAA sent a locksmith.
Spook my parents had at one time rental property and they never failed to keep at least 1 if not 2 or more sets of spare keys due to those type of situations. also if you happen to need to make a quick repair and the tenant calls you about it or you notify them (however long in advance by law) and they "forget" to be home you still can get in.