Have your Pontiac towed. Don't have someone come out to half the job. That would cost you a ton. Get on yelp.com. Find a certified independent mechanic in your neighborhood that can take care of all your needs. They are out there. And you may even have the auto center pick up the cost of the tow if you ask them.
Some tire stores have roadside service. But that's going to cost more than a tow.
You can contact a repair shop, for all sorts of mechanical repairs your car needs. For someone coming and towing your car will cost you more, so check for different options on how you can tow you car to the repair shop or get someone called for the same.
What is wrong with the tires? If they have a slow leak, fill them with air then drive to discount tire. Even if its a fast leak, fill, then go straight to tire shop, it will be ok. they will plug repairable leaks for free. If the damage is In the shoulder or sidewall, that's not repairable. Then drive car to a shop. Do not use the fix-a-flat stuff, it will destroy your TPMS.
You really cant fix tires on the fly. Need a machine to get the old tire off and new one on.
Avoid mobile mechanics if there is any way you could possibly be towed or drive to a shop. A lot of people out of work, with only basic skills, advertise themselves as mobile mechanics. I was broke down and broke myself the other day and a lot of the mobile mechanics I talked to left a LOT to be desired, I knew more about wrenching than they did.
Ghostbusters.
If you have someone come to you, it's going to cost more. If you have the car towed to a repair shop, it's going to cost more.
Okay so my car is sitting in my garage at home and it's sitting on two flats and it also needs some repair on the driver's window, needs new brakes, and needs some work on it's overheating issue. I know where I'm going to take it to get it repaired but the issue is the tires. I need to have someone to come out and fix the tires and know absolutely no one that can do it. Is there some place that comes out to do it at low cost? What should I do? I have a 2004 Pontiac grand am if that matters.