[mothered]

my only thought was.  Can they somehow see if I turn it on and maybe see my andress ?
i dunno maybe like in apple with other device (iphone with imei, gps, dunno)
maybe withdraw the refund before it enters

In terms of your residential address disclosed without GPS enabled, an "estimate" of your location can be done (sometimes as close as a couple of miles) with a JavaScript code embedded In a webpage that you're viewing (running In the background without requesting your permission). This Is browser-based that targets the end user's device, In your case, the IMac.

There are a lot of methods to get your location (example, Cross-browser fingerprinting on an OS & Hardware level, Ultrasonic Cross-Device Tracking etc) and for me to document each and every one and elaborate, Is beyond the scope of this post. I'll be here all day. If I can do It (which I can), so can others who have the knowledge, but we're talking about going to extreme levels here.

As said, they have no reason to suspect or monitor your activity, so you're good to go.
EDIT: Typo.