WFH from different location

I am planning on WFH from a different state for just one day. My boss has told us that they want us to be working from our actual homes when we have WFH days (which are specifically wed and Fri).

I have done this once previously and asked my boss for permission, and he did allow it but was reluctant so I just didn’t want to make a deal out of it again.

I am worried that my boss/company will be alerted that I am working from another location due to my vpn. To clarify, this wouldn’t technically be breaking any overarching company rules but it’s just my managers preference. Regardless, is it dumb to risk it? Should I just call in sick that day instead? Or are the odds they actually get notified or check location extremely slim?