Was it hot outside when you were doing this?(I'm guessing it gets pretty hot in Houston) Was the parking lot made of asphalt? If the lot was on an angle and the asphalt was 120+ degrees, the ground that you were on will have the support strength of Play-Doh.

 

It was in the evening about 7pm, so I would guess that the temp was somewhere between 89-92. The parking lot was concrete from my guess, but hopefully issue resolved for some time, I just got me some 265/75-16 lemans AT tires from firestone this weekend, pretty nice ride and a little lift!