Think to yourself honestly about why you did poorly on the SAT math. Is it because you have difficulty with basic arithmetic? WPI requires all students to take at least two calculus courses and programming skills are fairly strongly correlated with mathematical skills. If so, consider 4getit’s statement and think whether a technical school is the best choice for you. Engineering and CS build on math and I’m not sure how many jobs are available for IMGD art majors.
WPI does provide some support for students with disabilities, but think to yourself whether you would be comfortable with a Math score below the 25th percentile of the school you are applying to.
I would suggest intensely practicing SAT math and retake it with the extra time as well and also consider applying to a school where you would be happy but which is less mathematically demanding.