If you are squatting right, the weight shouldn't be on your toes....
I broke my big toe with a 100lb plate(on a squat day).. deadlifted 3 days later, squatted the next week, never missed a workout.
Also, once there was some baby powder on the deadlift platform at a meet and my foot broke loose and slid out. Dropped the weight and it broke all 4 toes except the big one. That was my second attempt. I still pulled a third.
Walking sucks the most, IMO you should have no issue squatting. If you do then you have a form issue, and now is the time to fix it. All the weight should be on your heels.
That being said, I would stay very light so that if you do fuck up it won't harm anything.