Just get a couple yard sticks with big numbers and stick them on your garage ceiling back to back parallel to and directly above your front axle with one end of one butting up against the wall. Get a laser pointer level from big lots and stick it on your tire sidewall bulges (2 and 4 oclock) and point it at your ceiling. Measure from your bottom tire side to the wall. You parked on another measuring tape, right? Now the rest is simple math, inverse tangents IIRC. Positive camber would result in your two ceiling dots being further apart than your track width. Negative, they'd be closer together. You need big numbered yardsticks because you'll be squatting down near the floor and need to read and memorize those numbers.
Then when all is said and done, go to Firestone where you have the free lifetime alignment and make 'em fix it.