Stop & Go 1001 Pocket Tire Plugger with CO2

How long would you drive on this type of repair? I have about 1500 miles left on the rear tire and dont quite want to replace yet.

Is it okay to leave this under my seat in hot weather? Wondering if I should be worried leaving co2 tubes in the heat. Thanks!

Does it come in a storage bag? This is pictured without the pluge or bag.

Can this work for tires that have inner tubes? basically a tubed tire