Locksmiths are mostly crude, uneducated morons who attempt to hide their bag of tricks under a smoke screen of secrecy.
This worked well until the Internet.
Now that the cat is out of the bag it's fairly obvious that any idiot with an 80 IQ can pick most locks.
They may never be a Hank Spicer, but the reality is most locksmiths aren't and in fact most locksmiths don't even have the the reading skills to read some of Hank's books and actually learn something other than how to use a rotary pick.
Apply a battery voltage and snip the wires. No need to fuss with the switch.
Nobody opens vending machines. There just isn't enough inside to make it worth the trouble. If you want it that badly, smash the glass or take the entire machine and cut it open at home.
Or better yet, cart the machine home and then call a locksmith and tell him you lost the keys.
I'm sure he will be happy to make the $49.00. BWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWAAAAAAAAAA
The plumbing trade used to be the *butt* of all jokes but now it seems that locksmithing has become the new joke in town.