How about telling customers something like this when they schedule the appointment.
ALIGNMENTS FOR MOST PASSENGER CARS AND PICKUPS ARE $_______. AN ADDITIONAL CHARGE OF $__________ IS APPLIED FOR THE FOLLOWING VEHICLES OR SERVICES:
ALL VEHICLES REQUIRING ELECTRONIC STEERING ANGLE RESET
ALL LIFTED VEHICLES WITH OVERSIZED WHEELS AND TIRES
ALL PICKUPS ¾ TON AND LARGER
ALL MERCEDES, BMW, VOLKSWAGEN, AUDI, AND VOLVO BRAND VEHICLES
SEIZED PARTS WHICH REQUIRE EXTRA TIME AND MEANS SUCH AS USE OF A TORCH TO LOOSEN.
IF ANY CAMBER KITS OR SHIMS ARE REQUIRED THIS IS ALSO EXTRA.
SEIZED PARTS WHICH REQUIRE EXTRA TIME AND EXTRA MEANS SUCH AS HEATING WITH A TORCH TO LOOSEN WILL BE EXTRA. IF ANY CAMBER KITS OR SHIMS ARE REQUIRED THIS IS ALSO EXTRA. CUSTOMERS WILL BE ADVISED OF ANY ADDITIONAL CHARGES BEFORE WORK IS PERFORMED.