I think i have done this before. The guy who owns the shop is great, just ask him and I am sure he will work with you.
Yes! We have a drop box for keys in our garage door. If you have a key fob i recommend putting them in an envelope, as they will drop onto a concrete floor. I usually stop by around 8 and put any cars that are left outside into the shop overnight, so you wont need to worry about anything happening to it:)
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