I'm looking at a flat on the Leaf as one of two things:
A) Rubber plug, either an internal "mushroom" Plug&Go, or an old-school rubber rope and cement. That would be the nail or clean hole. Quicker to just plug and inflate than wait for a tow.
B) AAA tow to Discount Tire. Have an internal patch installed or a new tire if it's really damaged.
I'll never use the can of gunk. Tire shops hate those, and they ruin the valve/sensor.
The Leaf will never be more than 50 miles from home anyway.