I just picked up my HS250h today, (Lexus of Naperville), and was asked if I wanted to purchase a Service Plan. Cost is $551.00. Any thoughts on if its worth it?

For $551.00:
5 Oil and Filter Change(Including Tax and SHop Supply @ $103.00 = 515.00
5 Multi Point Inspection 75.00
1 Key FOB Replacement ($400.00) Annual Maximum) @ $300.00 = 300.00
3 Cross Country Motor Club (3 years) @ $49.00 =149.00

7 $$OFF Scheduled Recommended Service Coupon Value $196.00
1 N/C Wiper Inserts Installed Coupon Value $35.00
1 $$ OFF interior and Exterior Detal Coupon Value $50.00
1 Complimentary TOuch up Paint Coupon Value $10.00
1 $$ OFF Brake Service Coupn Value $50.00
1 $$OFF Brake Fluid Flush Service Coupon Value $50.00
1 $$ OFF Power Steering Flush Service Coupon Value $30.00
1 $$ OFF Fuel Injector Cleaning Service Coupon Value $35.00
1 N/C Mount and Balance w/4 Tire Purchase Coupon Value $105.00
1 N/C In Car Air Quality Mist Service Coupon Value $69.95
1 $$OFF Battery Replacement Coupon Value $30
1 $$ Off Next Care Care Plan Purchase Coupon Value $50.00

Also, Looking into Snow Tires for this Car. Any Input would be greatly appreciated.