Garage floor stain

I built a new garage, 24ft by 26ft long. I started with a polished concrete floor professionally installed. Then I bought Behr concrete garage floor stain. I spent days getting it ready to apply, followed the instructions to the letter, and then some. I spent hours doing the prep work. I applied the stain and it looked awesome. A week later I put my antique Cadillac and a ride on lawn mower back in the garage. The lawn mower started leaking gas from a rubber gas line. This happened over night. In the morning I had a piece of the floor curdled up and ruined. The stain on the floor is subject to easily scratching. It is almost like some kind of glass film over the floor. Roll a floor jack across it and it leaves a mark. I am not happy and will never use Behr products again as they are not as described at all. Now I am going to try to remove this crap and put down garage floor tile. Live and Learn I guess.