Personally I would never live a bike in a public place, and most definitely not an ebike. There isn't a lock strong enough that can stop someone stealing it. A cordless angle grinder will cut through pretty much any lock.
I never leave mine in a public place. In fact there are only two places I ever leave mine, at home and at work. The building I work in is probably more secure than any other building you could wish for, but I still lock it up (using an Abus Granite flat folding lock). But I don't lock it to stop anyone stealing it, its more to stop a colleague from having a ride on it without me knowing.
I know of people who walk around my city centre carrying extremely large bolt croppers under their coat and down their trousers and steal numerous bikes, usually from around student buildings. I would say that no bike is safe, and no lock will stop a bike from being stolen.
If you leave your ebike locked up in public, then the odds are that it stands a good chance of being stolen.
I understand here you are coming from, and you are lucky that you only need to park in only those two places.
But for instance, I have no car during the week as my wife needs it, so I go shopping and on Dog walks with my e-bike.
I park when and where needed.
I also feel that many e-bikers are probably somewhat similar in their needs.
Which is why I have one very loud alarm and two different heavy bike locks, one for the front wheel to frame and one for the rear wheel to frame. Also including a strong fence or similar when possible! But as you might say, nothing is perfect, but up to now, neither of my bikes has been stolen. Lucky!
Insurance is also a good idea, which someone has already mentioned here.
I would also like to hear from others, both about their needs and what they do to make their bikes safe, as its a very interesting and important subject!
regards
Andy