The last two minutes
Test the result before the Glendale visit ends.
Operate a serviced door from both sides. Close it normally, without lifting or leaning, and check the latch and deadbolt again. For rekeying, try every new key where it is supposed to work and confirm that an old key no longer turns the changed cylinder. For a supported vehicle key or fob, test each function included in the job.
This is also the right time to ask what caused the symptom. Was the cylinder worn? Was the door pressing against the bolt? Was the fob incompatible, damaged, or simply not programmed? A short answer helps you recognize the same condition later and avoid returning to a habit that created extra wear.
Put new keys in a secure place and make the handoff clear. At a business or rental, note who received them. At a home, decide where the spare belongs. A good locksmith visit should end with working access and fewer unanswered questions.