Fake battery, dq or not

[Ed Fernandez]

Here's a scenario for you. Class runoff, one guy forgets to turn fan on in car. Near finish line he sprays the windshield of the other car. At end of track NHRA personnel wave offending car off track and put something under car ( not sure what it was). Should he be tossed for putting foreign substance on track surface?
As far as bogus battery, DQ should be mandatory, no if's and's or but's.