Presumably thieves professional enough to pick locks are also able to break glass windows without making a lot of noise?

Most professional locksmiths can't even pick locks, let alone any successful former thieves I have known. You will rarely see either not go directly for a destructive entry method even when trivial bypasses are available if one had bothered to research.

Lock picking is basically only found among the locksport community.

The neighbourhood might hear it but if nobody reacts who cares (from a burglary point of view)

If a car alarm goes off my reaction is not "oh no, someone is stealing a car" it's "man I hope they know how to shut that off quickly"

Isn't that the reason why you put tape on the glass first?