In the past I've notified Sami (as per rules) when a friend came to stay and we were both logged in from the same IP address. This was several years ago and since then I've visited this friend at his place. We were both logged in at the same time, without asking 'permission', with no problems so I guess the checking isn't that severe.
With VPNs these days, it's virtually impossible to tell where many people are anyway. For example, right now I'm logged into AWS on my phone in Greece (home) and from my desktop which is currently "in" The Netherlands and often pops to the UK for a while. No issues whatsoever.