Do not rent car dolly or anything that attach to your car.
My husband had to move his project car from garage to storage. He rented full size trailer. Some really young looking kid came out and hooked up the trailer to our truck. We went back to the house, got the car on the trailer and way to the storage... on West bound Grand Ave, the trailer locked up, tossed us all over the road, finally came off of hitch and rolled to other side of East bound lane (in front of Food City).
Scared the crap out of me. Luckly, car was fine and nobody got hurt. We had to get trailer towed to storage because it was still locked and our car was on the trailer. Somebody from Uhaul came and got the trailer the next day. When I got my bank statement, they charged us a lot more than what we originally signed for. They ended up charging us for 3 days and kept deposit too. After arguing with them numerous time, they refunded all but 1 day of charge. I think they shouldn't charge us at all since we couldn't use the trailer and we had to pay for towing too.
They were rude...