Of course I do. I know every outlet up and down the coast by San Francisco, use 'em all the time. If it's appropriate, I ask, and I've never been turned down. The best example of this is the golf course in Golden Gate Park. There's only one outlet, and it's where everybody can see it - so I ask the owner, he says OK, and then I have some great pulled-pork BBQ and hang out.
Other places, there's either nobody to ask, or too many people to ask; you'd have to go up the chain of command. In these cases, much simpler to just plug in.
Opportunity charging is part of the EV life, whether permitted or not. Some bigwigs say the infrastructure isn't there; yet electricity is the most ubiquitous energy source in North America.
There's a new Japanese restaurant, and the owners have the whole building. In the enclosed parking lot, there are a half dozen spaces each with their own 15 amp socket. Not only a great idea, but it draws customers (or it will in the future). If most places did this, range becomes a non-issue.
Liken it to the Mid-West. It gets so cold, there are plugs by EVERY parking space - people need this to plug in their engine block heaters so the oil doesn't freeze. There is no charge for this.
It's not stealing - it's saving the planet.