I've known people to lose six figure salary jobs because they accepted a $20 bottle of wine from a client and didn't declare it properly. What about people who get caught accessing data / sensitive information without a proper reason - there are often no monetary damages at all yet in most organisations this would (rightly) also be a sackable offence? I've seen people lose six figure jobs for doing this, too.
Gross misconduct, bringing the organisation into disrepute and a whole host of other reasons can be used to fire people for trivial and minor offenses like this. If somebody is happy to mug people off for $10 and is stupid enough to get caught and admit to it, and especially if they're just doing a job answering calls and responding to emails which anybody else could do after a couple of weeks of training - then any organisation with its salt will cut the fucker loose because it isn't worth dealing with their bullshit. And after this incident has gone viral, I'd imagine people have figured out where this is, and the business has been getting some bad publicity and nuisance / malicious calls etc. Why would any business put up with this?
Doesn't matter if its just $10.
Also, fuck DoorDash and the gig economy.