To be fair if the House is at all able to be occupied after not being maintained for 20 years and it still has running water and electricity why try the box of food you just found? Especially if it has the present-day and not what that item would have had twenty years earlier.
I learned that police CB radios have a neural implant with them so one end of the conversation doesn't need to be audibly heard.
I also learned there's no reason at all to furnish your ludicrously large loft with anything more than a couch, a book shelf, and a table and some Ham Radio equipment.
And... was it me or did this couple live somewhere in the Northeast but also apparently made a trip to and from Denver a couple times in this movie?
Colorado, being half a continent away from New England.
Also, and this may come from lack of full knowledge on Ham Radio, but aren't Ham Radio operator call signs longer four characters our.... "hero" had?