You have the legal right to use the repair shop of your choice. No one can require you to go to any particular shop against your wishes.
There is no law requiring you to obtain more than one estimate.
You have the right to choose your tow truck.
Ask the tow truck driver to take your vehicle directly to your chosen repair facility, in order to avoid additional costs.
Never drive a car that could be unsafe due to damage.
Your car is one largest investments you will make. Be sure to preserve its value and insure your safety by having it repaired by certified professionals.
Choose an automotive repair shop that has quality unibody and frame repair equipment, and I-CAR or ASI certified technicians to repair your vehicle.
Make sure the shop you choose offers a written lifetime warranty.
Ask if the shop will be using genuine original equipment replacement parts.