Next time, try doing a "square" -- 4 right (or Left) turns in a row. If they are still behind you, you've got trouble! Your maneuver--turn into a parking lot, then quick turn out--was a classic, and well executed. Give yourself a pat on the back! A side street might have been an even better choice--he possibly could have blackaded the parking lot drive with his truck, effectively trapping you. Always make sure there is a second exit when you are being pursued.

When you're paranoid, you just know these things!