You can also go down the bioware route. Fairly unobvious, won't set off scanners, doesn't fear background counts and if I remember rightly they'll only ever know if they do a blood test on the guy.
And certainly, if we say that with a bit of xp an Adept can get masking metamagic to conceal his biggest giveaway, then the Street Sam is not far behind/already there in terms earning enought to upgrade cyber to bio to remove their biggest giveaway.
edit: However, yes, Adepts do have an advantage there. And given SR's nature, its not inconsiderable. I don't think it compensates for the advantage in broad flexibility for less (while usually being able to do the same things better or as well) that the Augmentated has though.
I also think the biggest problem here really is just how far ahead the Augmented Adept is. I mean, I look at JustADude's infiltrator build and think I could match it with an augment, but am feeling too lazy to do the maths. However, I know that dropping one rank of stealth and using it to buy restricted gear and muscle toner 4 will immediately make it a better character in terms of raw efficiency. Lose traceless walk and one rank of unarmed combat. It shouldn't be that easy and... ok its not, I'd avoid his third choice from Way of the Warrior, so I'd have to lose a bit more, but the point remains.
JustADude: All of the condition clauses are clear examples of something that seriously comes with a downside to be doing while using your Adept powers. Not holding a gun doesn't. Since its an option dependent on GM discretion, I would say that any GM worth his salt would refuse that gaesa and ask for one that matched the others in terms of inconvenience. I don't think using it as an example of what the Adept can do under the rules, because a rules-first GM would probably go no. A nicer GM who wants to be nice to Adepts might go 'yes' but there I would say we're onto GMs modifying the rules. Which is admittedly just as technically finicky as what you're saying.