One could eventually hope that these surveillance powers (need to re-watch that cracking documentary called Person Of Interest) will be used as they should, meaning to detect hoodie-wearing individuals loitering near a store for a while, then darting in and out and running away. For me, that is suspicious behavior. Actually, running away from a store is suspicious in itself, hoodie or not.
The reality of this world, and the continued demonstration that police forces everywhere abuse the tools at their disposal with depressing regularity, means that these surveillance abilities will be used to allow a cop to follow his wife while she shops, along with anyone she appears to talk to. Alternately, some cops will certainly prefer to go crowd-surfing, picking some good-looking girl and following her just for visual gratification. In short, the system will mostly be used for anything except catching actual suspects - unless a draconian usage surveillance system is put in place around it. A system that would, for example, require a request form including a picture of the person to watch - form which would need approval in the system before the cop would be able to launch surveillance on that picture and that one only. During the procedure, other individuals could be tagged and additional requests made, each one having to await approval before being followed.
But, of course, all that would create unacceptable delays for the one time in the year when the system will actually be used to follow a would-be terrorist, so no usage surveillance will ever be implemented.
When I retire I will stay at home and get everything delivered.