>>713541381The fact that you can escape from a prison cell, get out of the jail itself, swim through the sewers, and climb all the way up into a junk AC implies he's not completely crippled.
It seemed more to me like that scene is either him being woken up from some kind of cryosleep or was him just waking up after getting the old-gen augmentation from some sketchy RaD doctor.
Just because newer generation augmentation exists the hardware to do old shitty ones doesn't just cease to exist, if anything he's probably paying pennies for the surgery because it's old gen and spending the cash on the cutting edge aug tech for disposable dogs is a waste.