Alternator Belt slipped off - Is the car still safe to drive

[hahaha8]

Basically, the alternator belt slipped off my car today but my car still has enough charge in the battery to start the engine fine. It happened at a friends house so I've left it there at the moment. Just wanted to ask if it is safe to drive the car back to the garage or is there a risk if I stall then the car might not start again.

Thanx