Memorize It, and the Firm's Name
The card at home is handy so the wife/etc. can call them for you, but the card in the wallet will probably be useless.
Remember, IF you are really ARRESTED and processed at a Jail, you will 85% likely NOT have access to your wallet when you are finally allowed to make your one phone call. Your wallet will have been logged in as either Personal Property or Evidence and be sitting in a box somewhere.
Some places (fewer these days) will actually NOT let you access your wallet to pay your own bail, even if you have the cash in the wallet. Somebody else must post for you, then you get your wallet back. That used to be a real treat that some Southern Sheriffs used in a 'Color Selective' manner to keep Black folks in jail just because of their skin color. This practice has mostly gone away, but I mention it here just to illustrate.
I'd memorize the number, as well as the Firm's name, in case you have to have someone look up the number for you.
Futuristic