i was at work today and the keyless entry fob fell off my keychain. i looked all over the place (i worked outside today, around hundreds of people and kids) and couldnt find it

my car wont start without it, however. i disconnected the battery at the suggestion of a coworker and it still wouldnt start after the power was back.

is there anything I can do? i see that these things are sold on ebay with programming instructions, do they work (probably be faster to go to the dealer...on monday, meh)?

first thing is i need to start my car to get it home from work, cause i really dont want to pay to have it towed :-/

is there anything i can do until i can get to the dealer tomorrow or tuesday?