@Kasay MardisThis sounds like the tread came off the step.  

Tread lightly 

I would find out what your local building code is for stairways, step width, stair tread, riser height and incline,, just as you think.. this is complicated. just because it's grandfathered in doesn't make it less of a obstacle just makes it a legal obstacle that someone can always find a lawyer to help in filing a suit.. 

Tread carefully

Hey guys,just wanted to jump on the tread, my wife and I are just getting started ourselves and looking to do it in Lawton.

Second, they should place snap traps at the base and tops is the tread of the front two tires (assuming the engine is in the front of their cars).

Maybe if the contractors put down plywood or plastic so no dirt or tread marks would take place or whatever.

Tread very carefully, my friend.

I do have to tread somewhat cautiously due to code enforcement being involved but I have everything completely done (with proof) so I believe I’m on solid ground there. 

I would tread very carefully here or you could be in for a very expensive education.