broken glass strewn about.

If it looks like broken bottles, then it's likely intentional (i.e. targeting cyclists). But as others have pointed it, it could also be smashed window glass, which will look considerably different to broken bottles.

Either way, it's honestly a shame that criminals have to ruin it for everyone else.

Not that it's going to prevent every puncture, but I'd consider getting some beefy, puncture resistant tires for your bike.

If there is street parking there too, it sounds like someone was smash and grabbing from the cars.